PS3's lineup is the weakest by far regarding exclusives, but they also have excellent multi-plats coming which destroy anything on the wii. 360's first quarter is the best among the three, considering that 360 almost always has the best multi-plat version, and their exclusives shit all over ps3's.
Some games i will buy
SO 4 (360)
Resident Evil 5 (360)
Street Fighter IV (360)
King of Fighters XII (360)
Bionic Commando (360)
Alan Wake (360)