Not really that they were bad, I just never got into them..
Some examples would be (And I know people are going to be thinking wtf)
MGS4
Gears 1 and 2
Folklore
InFamous
KZ2
Darksiders (still on my todo list)
DMC4
Actually I would say out of the 80 or so games that I own, I have probably only beat maybe 20 of them, as I get bored of the game or a new one comes out and I shelf the older game for the newer one then never go back to the older one :P
I actually still have 3 games still in the shrinkwrap at home as well, Too Human (Was like $20 at FS), Lego Star Wars and RoF
Unicorns ARE real - They are just fat, grey and called Rhinos