Mine is still Lost Planet. I thought Resident Evil 5 would change that, but sadly not.

Fallout 3. I can't get enough of V.A.T.S.in' stuff.

My is tie between Lost Odyssey and Dead Rising.

My least favorite is Gears of War 2 and ToV.

Tales of Vesperia. Reason enough to own a 360.

Mass Effect

Really want to play ToV and Fable 2. One of them might take ME's place.

If I absolutely had to pick one, it would be Halo 3.

Forza Motosport 2
can't wait for the third game...announce it soon!!!

Out of exclusives I'd say Gears 2.

But overall Portal.

Trouble is most games this generation I sell once I completed them. Use to always keep them up to this point, guess lack of free time and money means needs most.

Very much enjoyed oblivion(spent 50 + hours running around before even seeing the first gate, loved the freedom which hadnt seen before)

Also Saints Row 2 Story Co-op

Biggest Disappointment - Bioshocks AI ruined my time on it, cant believe how many people blindly say how amazing it is when its an old game with new graphics. Maybe also because I played Dark Messiah on PC before that had basically same powers that Bioshock used that made Bio seem old.

Still Dead Rising by quite some distance.