360- GOW3,Forza 4.
PS3- Motorstorm Apocolypse, Twisted Metal, Infamous2, LBP2, Killzone 3, uncharted3, Resistance3, Socom4.
I'm sure I'm missing alot of games. However, just going with the big confirmed exclusives alone you gotta go with PS3. And no I'm not a fanboy. I have both systems. This is just going to be hands down a huge year for PS3.