Any GTA
Left 4 Dead
LittleBigPlanet
Pikmin
Bioshock
Pokemon games
Zelda MM
Fable 2
Dead Rising
Wii Sports

Call of Duty (except CoD4:MW, not a fan of old WW shooters)
GTA series (fun to do criminal acts but almost same repetitiveness)
Halo series (nothing special of a FPS)
...do most people like Guitar Hero? ..well i dont like the series anymore since its been overmilked too fast.

Any Zelda other than Twilight Princess.

GTA 1-4
MGS 1-4
Wii everything
Oblivion
Failblivion 3 (aka Fallout 3)
Fable 1
Call of Duty
music games

bioshock
cod series
deadrising
all mario games
gears 1
god of war 1

i never played either gow 2.edit i forgot fallout 3

-Forza series
-World of Warcraft
-Halo series (single player only, i like the multiplayer, but i'm a real fan of FPS's single player, so this is a down for me)
-Pikmin (Shigeru is a master genius but i didn't like at all this game)
-Zelda Wind Waker
-Half Life 2 episode 2 (HL2 and HL2 ep1 are great)
-Team Fortress series

those from the top of my head...

GTA, especially 4.
Fallout 3 (love Oblivian, though)
Zelda: TP

Im sure I can think of some more...

Gears of War series .
Resistance: Fall of man.Ironically, I loved the sequel.
Killzone 2.
Flower............Ok! I never played it but it'll be a cold day in hell before I praise a flower!
Fable II. I actually gave it a couple days before I gave up on it yesterday.

If you don't like Halo3, you suck at it

Littlebigplanet.

I do not get the appeal.

Halo (or infact any shooter with fast regen of health)
3d GTA