It doesn't matter what resolution or what settings you have it at, screenshots will always degrade the quality of the still. Especially if they are Jpegs and uploaded to photobucket...
Make a video comparison and post it see the difference.
Uhhh yeah genius I posted fullsize BMPS of Crysis2 and jpegs of Crysis1 and you can still CLEARLY see the huge difference between the two. Crysis1 looks far better than C2 in almost every category
Crysis 2 has better first-person weapon models. That's about it. I guess we'll have to wait and see if the DX11 patch, if it ever happens, improves matters.