Xbox 360

Braid (92.2%) (7/10)

Xbox 360

The Orange Box (96.3%) (8/10)

Currently playing Braid.

PSP

Syphon Filter: Dark Mirror (87.1) (6/10)

Currently playing Final Fantasy Tactics: The War of the Lions

PC

Half-Life (94.2) (4.5/10)

Not currently playing any PC games.

PSP

Grand Theft Auto: Liberty City Stories (87.4) (5.75/10)

Now playing Syphon Filter: Dark Mirror.

There's nothing I hate more than a crappy game. That is why I use game review sites to help me avoid crappy games. Gamerankings.com is a great site that takes all the major reviews of games and averages them into a single rating (out of 100). I try to play all the top games and avoid crappy games. So far I've had a good experience. The following games I have beaten (followed by their gamerankings.com rating and my personal rating):

Xbox 360:

Grand Theft Auto IV (96.9) (9.25/10)

BioShock (95.2) (9.25/10)

Call of Duty 4: Modern Warfare (94.2) (9.5/10)

The Elder Scrolls IV: Oblivion (93.9) (8.5/10)

Gears of War (93.8 ) (9.25/10)

Halo 3 (93.5) (9.5/10)

Mass Effect (91.0) (8.0/10)

Tom Clancy's Rainbow Six Vegas 2 (82.2) (7.5/10)

Army of Two (74.2) (6.75/10)

PSP

God of War: Chains of Olympus (91.4) (9.25/10)

PC

Halo: Combat Evolved (86.2) (9.25/10)

I'll add more games as I beat them. I'm currently working on The Orange Box (Xbox 360), Grand Theft Auto: Liberty City Stories (PSP), and Half-Life (PC).