This is just my opinion, but after playing about 5 or 6 games I can honestly say I won't buy this; for pc or 360. I thought the movement would feel awesome, but the sprint isn't that fast, the jump isn't that high, and moving through the environment feels clunkier than I expected.
Graphics are really not that great. In my opinion, a game like Reach has much better effects and just looks much cleaner. Everything is pretty blocky and the resolution is pretty bad. The lighting looks nowhere near the multiplayer trailer, its not horrible, not fantastic. The physics are worse than I expected, the dying animations are not fluid at all and bodies "spaz" out quite often.
The thing that let me down the most is the weapon feedback. You know how nice it feels to shoot the dmr in reach or how powerful it feels to shoot the m14 in black ops? No such luck here. Guns have little recoil and just don't feel that great to shoot.
I know it sounds bad, but remember it is just personal preference. This game just isn't on par with a game like halo when it comes to multiplayer. I know I keep mentioning Reach, but its flawless gameplay overshadows this game tenfold. Once again, mp seems like an after-thought in Crysis. I think a demo may actually drive sales down here.
If anyone has any questions I'd be glad to answer them.
