When we originally planned our mammoth movie streaming services feature (which you can find right here) it was mainly to highlight the differences, if there are any, between the two biggest movie and TV show platforms out there; Netflix and Amazon Prime Instant Video.

However, it grew into something quite different as we also wanted to include other options and places to go to watch content digitally. We also didn't want to make it that opinionated, rather present the facts and let readers decide on which to opt for.

We've constantly updated it ever since, with new services replacing those that have since fallen by the wayside and we feel it's a definitive guide to the options out there, should you be willing to part with hard cash for streamed thrills.

That's still not enough for some though, with the biggest question that we still got being about the two we originally planned to focus on. What's more, readers wanted to know our thoughts on which is better, Netflix or Amazon Video? That's why we've put them head-to-head to find out.

Amazon Prime Instant Video wins the price war hands-down. Thanks to recent price rises, Netflix now has a three tiered pricing system that starts at £5.99 a month, but that's for it's more simple, basic package.

For that fee, you get access to standard definition streams of its films and TV content and can only watch on one device at a time (you can register up to six). The next package costs £7.49 a month and gives access to HD content - presented at 1080p - and can be viewed on two devices at the same time. The priciest plan costs £8.99, adds simultaneous viewing for four devices and gives access to Ultra HD 4K content.

Amazon Prime Instant Video, on the other hand, is part of an Amazon Prime subscription, which costs £79 a year. As well as give access to the entire range of SD, HD and even some 4K content (if you have a device to play it back through), you also get free next and same-day delivery (on millions of items on Amazon.co.uk), unlimited cloud storage space for photos, access to Prime Music - Amazon's audio streaming solution - and the Kindle Owners' Lending Library, which gives you the change to borrow an eBook to read on a Kindle or Fire device.

Alternatively, if you don't require the rest of the Prime benefits, you can sign up for £5.99 a month. There is no restriction on how many devices can be registered, but you can only stream to two separate devices at the same time, and they have to be different shows or films.

Amazon also has a large library of more recent movies and TV box sets to purchase or rent through the same account, which naturally costs more but is a nice addition.

Netflix wins when it comes to the amount of devices it can be viewed through. The list is seemingly endless, with almost all brands of Smart TV, media player, games console, Blu-ray player, smartphone, tablet or computer operating system having a Netflix app of some kind. Paid TV set-top-boxes from Virgin Media (the TiVo box) and BT and TalkTalk (YouView) also have access. You can find out an impressive list here, but we know of others that doesn't even cover.

In comparison, there are still holes in Amazon device list, including the Apple TV - either 3rd generation or the new 4th gen box. It is, however, spreading its wings a little and has recently added support for Roku - something that owners of that device line have been bemoaning for years. You can see the device list here.

Amazon also lags a little behind in making HD accessible on all platforms. Netflix is available in HD on all devices capable of presenting it, but Amazon does only offer standard definition on certain devices. Android phones and tablets, for example, can only receive SD video at present.

When compared to a service like Now TV - which has on demand and live access to all films on Sky Movies - both Netflix and Amazon Prime Instant Video are fairly behind current trends. Bar one or two exceptions, even the latest movies in their respective libraries are a six months to a year old.

Netflix has recently started to introduce its own movies though, with The Ridiculous 6, Beasts of No Nation, and the forthcoming Crouching Tiger, Hidden Dragon sequel being funded and introduced onto the platform. The latter is even hitting the streaming service at the same time as cinemas.

Amazon is yet to release its own films, although it does have its own original TV shows, and both sometimes sign exclusives. Netflix, for example, had a quick turn around on the The Hobbit movies exclusively, while Amazon posted excellent Brit films Paddington and The Imitation Game speedily.

Netflix has more than 2,300 movies available on its platform (almost 3,000 videos when you add TV shows), while Amazon Prime Instant Video lists less than that, with just over 2,100 videos in total. It's hard to get exact figures, but if you apply the same percentage of films to shows on Amazon (a little over a 76 per cent split), you'd get around 1,600 movies.

It's less but you'd be best to check out what's on offer on each and decide based on your preferences. It would be unwise to go by the numbers alone and then find out that 1,000 of the films are Police Academy sequels or something.

As we've proven above, there are more TV shows on Netflix than on Amazon Prime Instant Video. However, when it comes to TV content, the choice between the two is closer than you think. It's also quite subjective.

While both have content deals with plenty of broadcasters, with many shows being available across the platforms, Netflix and Amazon have each been investing fortunes into original and exclusive programmes.

Netflix and Amazon original programming is not just making it harder to choose between them, with great shows on each - Daredevil and Jessica Jones on Netflix, Transparent and The Man in the White Castle on Amazon, for example - it is also making waves in the more traditional sense. Both House of Cards and Transparent are winning Emmys and Golden Globes, even though they are streaming exclusives.

Essentially, you might make your choice of which to subscribe to through studying which shows are exclusive to which platform.

Both services have recently adopted ultra high definition, with 4K content available on each. However, devices are still to catch up somewhat.

Amazon currently offers almost all of its own original programming in 4K, and some UHD films are available to purchase or rent. Netflix's 4K content is rather limited too, with its own originals and bought shows - including Breaking Band and Better Call Saul - available in what it calls Ultra HD 4K.

You can find all 4K shows on a dedicated menu section on both services if you have a device capable of playing it and pay for the extra subscription (in the case of Netflix).

At present, the apps for both on certain 4K Smart TVs (from around 2014 and up) can playback UHD content, while the latest Amazon Fire TV can play Amazon's 4K content. Nvidia's Shield Android TV box and the BT Ultra HD YouView box can play Netflix 4K content.

When it comes to the applications and front ends, Netflix seems to have it more sussed than Amazon - not least because it has a more standardised approach to presentation. Nearly all of its apps, be they on tablet, smartphone, set-top-box or TV are presented in a similar fashion. There are one or two exceptions, but the content rich user interface is generally identical across formats.

Not so Amazon, which has greater diversity in its approach. Look at the front end of the Amazon Fire TV box and compare it to the Roku channel or Xbox One app, for example. They all present the same content but often in radically different ways.

The Amazon apps can also be confusing for customers in that as well as the content included in a Prime subscription, they give access to paid for content. There will always be a section dedicated to Prime no matter the app or channel, but you can easily accidentally stray and think a show or film is included only to be faced with a screen listing additional prices.

Also confusing is that, because Amazon Instant Video content is available to those that don't have Prime membership, third-party apps (those on non-Amazon devices) often show the prices on selectable buttons even though it can also be streamed for free.

Video on both services works the same way though, with similar quality and variable bitrates depending on internet connections. And you can pause and pick up watching later in a similar way.

In 2015, Amazon Prime Instant Video added a feature that Netflix has been resolute against from the start - offline viewing. Some of the shows and films on Amazon Prime are available to download and watch while travelling on mobile devices. Not all are available as it's down to rights issues, but plenty are - including all of Amazon's own output.

Netflix, on the other hand, has the ability to set profiles for each member of the family. Each person can have their own profile so Netflix will learn their particular preferences and offer suggestions based on previous viewing. It will also put their current wishlists and watchlists front and centre when they log in.

Kids too can have their own profiles, which can be locked to content appropriate to them. There is a whole kids section, with a dedicated front-end and menu system that can be locked to a child's profile.

We'll say right now that choosing between Netflix and Amazon Prime Instant Video is not an easy task. It will likely boil down to two things though: price and preference.

For preference, you need to take into account what type of movies and shows you most like and compare the output of each - specifically the original and exclusive content. Top Gear fans, for example, will no doubt want to subscribe to Amazon's service when Jeremy Clarkson and his stooges launch their new show on Prime Instant Video in the new year.

Marvel comics fans would rather choose Netflix, as that has a content partnership with Marvel Studios.

Preference also comes into play with what devices you own. Apple TV, for example, doesn't currently have an Amazon Prime Instant Video application but does have one for Netflix, which makes it simple it that's your primary viewing source.

Some though might simply look at the price and make a decision that way, and on that front Amazon certainly puts a convincing argument, especially if you buy a lot of products through the online retailer.

One thing is for certain, whichever you choose, you'll never be found wanting for something to watch again.

You can find out more about Netflix here and Amazon Prime Instant Video here, including subscription details and how to sign up for free month-long trials to try them out.