Halo 3 and Gears of War 2 (and Gears 1) I certainly agree, of the PS3/360 games I think number 1 and 2. Number 3 would probably be Grand Theft Auto 4 for me, despite I still think it's a top game. I think Mass Effect is also overhyped.
Resistance 2 I believe didn't receive much hype like the other titles. I think it's a good FPS, better than most and different enough. LittleBigPlanet, I don't agree with at all, IMO it's an amazing game to play with friends (male and female).