1 - speed and quality - 1080p, no buffer
2 - Good interface - netflix has great interface, Prime video is ok-ish, Crunchyroll is so damn hard to navigate
3 - just works, everywhere - Netflix has an app for most devices, works on any browser, and streams to chromecast and smart tvs. Prime doesn't cast to chromecast, doesn't work between android and smart tv app (I can't control TV on my phone). Crunchyroll... well... nope. Pirate websites have a better player than crunchyroll...
Guess which service I don't pay for?
Just checked. In Sweden the featured videos in Amazon Prime are: Shrek (2001), Red (2010), Twilight (2008), Top Gun (1986), Life of Pi (2012) etc. with a hodgepodge of Amazon's own content and recent-ish movies ranging from Madea's Farewell Tour to Amazon's Chemical Hearts to SCOOB!
Yeah, nah. I get the same crap with Netflix.
But I agree with you on that, and this is a bummer for Amazon here in Canada. They have: old movies/shows, Indian movies, old Indian movies.
I still like Prime because of a few originals, and because I personally like old shows and movies. But I can't really recommend to a lot of people