These are the only four good platformers on the PS3. The rest are garbage and Rayman Origins is best on Xbox 360:
2D
LittleBigPlanet
LittleBigPlanet 2
3D
Ratchet and Clank Future: Tools of Destruction
Ratchet and Clank Future: A Crack in Time
Don't want another LittleBigPlanet game? Needs to be 2D? Well, there's absolutely nothing left.