ah man, don't make me chose!
MGS4, brighter, detailed.
KZ2 - lighting is amazing, and environments so immersive.
both awesome graphically.
Atari 2600, Sega Mega Drive, Game Boy, Game Boy Advanced, N64, Playstation, Xbox, PSP Phat, PSP 3000, and PS3 60gb (upgraded to 320gb), NDS
Linux Ubuntu user
Favourite game: Killzone 3