Just picked this one up today for the xbox and I must say that I am pretty darn impressed. Best graphics on xbox I have seen yet. I haven't played the pc version so I can't comment on the comparison between the two. The sound is amazing. The 5.1 surround has you completely on edge all the time. Best use of surround sound on the xbox I've heard. Hearing all the screams, groans and snarls through the rears gives this game a completely un-nerving feel. Can't tell you how many times I jumped straight off my couch scared silly, and I was playing during the day, can't wait to fire it up when the lights go down. Gameplay is pretty straight forward fps, nothing out of the ordinary, but the great graphics and 5.1 surround make this a no brainer.