killzone 3 is a must .
from what ive seen i like BF3 more than MW 3 but as you said i m afraid that it might be too much running around without doing anything.
so crysis is bad?
is infamous 2 also boring?
If Killzone 3 is a must, then there was no point to list it, because you already knew that you would buy it anyway.
BF3 seems trying to be a little bit more like CoD with this iteration of the series, so you might as well go with CoD itself. With MW3 you at least know what you are getting.
Crysis 2, like every other Crytek game, tries to impress with its graphics, but the gameplay is pretty average. If you are thinking about buying at least two other FPS already (Killzone 3 + either BF3 or MW3), there's not much of a point to buy yet another one.
inFamous 2 must be really, really boring. The guy who hyped it up as the second coming before its release (radiantshadow92, I think) has been very quiet about it afterwards.