Honestly i'm really looking forward to the multiplatform releases here. There isn't much here in the way of exclusives that catches my eye, other than Alan Wake and Mass Effect 2 (if this is even confirmed as a 360 exclusive...I honestly think it may come to the PS3 at some point in time). Halo 3: ODST seems to be just a short expansion to Halo 3, which should be fun, however I can't see MS using this as their blockbuster Holiday 09 title. Splinter Cell Conviction could be awesome, however I'll reserve judgement until we see just what it is exactly that Ubisoft has done to this game.
With that said however, i'm really eager to see what Microsoft has up its sleeve for this year. Perfect Dark 2? Killer Instinct 3? Crackdown 2? Dimitri? Locking down Mass Effect 2 as an exclusive? Who knows...
Definitely buying:
F.E.A.R. 2: Project Origin
Resident Evil 5
The Chronicles of Riddick: Assault on Dark Athena
BioShock 2
Alan Wake
Mass Effect 2
Prey 2
Duke Nukem Forever (I truly believe
that this is the year of Duke)
Rage
Halo 3: ODST
Call of Duty: Modern Warfare 2
Banjo Tooie
The Dishwasher: Dead Samurai
Uno Rush