I really wasn't very impressed with KZ2. The only parts I've seen looked like poorly lit Resistance 2 levels. There were cool particle effects, but the facial animations on your squad were painful to watch. I think Heavenly Sword looks better than KZ2, and has spoiled me for emotion in games.
Alan Wake, Splinter Cell, Forza, the FMV sequences of the Halo games (the gameplay footage didn't impress as much) and FF XIII all looked impressive running on the 360.
Believing in the PLAYSTATION®3......IS.......S_A_C_R_I_L_E_G_E