I agree with all of those, K2 is my least favorite of the bunch.
I can suggest:
LittleBigPlanet (X)
Burnout Paradise
Elder Scrolls IV: Oblivion
Metal Gear Solid 4 (X)
Resistance 1 (X)
God of War Collection (X - Includes God of War 1 and 2, demo for 3, Trophy Support, bonus content for the games)
Uncharted 1 (X)
And Ratchet and Clank: A Crack in Time just came out, haven't played it tho.
(X) - Exclusive
I can suggest:
LittleBigPlanet (X)
Burnout Paradise
Elder Scrolls IV: Oblivion
Metal Gear Solid 4 (X)
Resistance 1 (X)
God of War Collection (X - Includes God of War 1 and 2, demo for 3, Trophy Support, bonus content for the games)
Uncharted 1 (X)
And Ratchet and Clank: A Crack in Time just came out, haven't played it tho.
(X) - Exclusive