There's some scenes at the end of crysis 2.The one where land/rock crumbles and everything at the end that dropped my draw more than anything in a videogame ever.
The textures are a bit better in Crysis 1, but imo not really until super high resolution if you use the texture pack for C2. Also Crysis 2 runs better atleast on my system. So on my 560 Ti, I7@4ghz, I think crysis 2 looks better at the max my system can do. However if you have the super super computer, Crysis/warhead will look better.
The original crysis is way more impressive, because of how open it is. The more varied landscape, etc.
I like all 3, but, I like crysis warhead and crysis 2... The first half of crysis is great, but the aliens and flying are kind of bleh to me.







