5)Skyrim (i hated the leveling system and was buggy)
4)Boarderlands (still havent finished a single one)
3)Resistance fall of man and Resistance 2 ( the 3rd one is what they wanted the series to be from the get go, too bad it got over looked. great game)
2)GT5 (it sold alot but i think PD bit off more than they could chew, way too ambitious)
1)Gears of War series (not my type of game, i just couldnt play them through)