1. Fifa 10
2. Left4Dead
3. Limbo
4. FallOut 3
5. GTA IV
6. Peggle
7. Guitar Hero: Metallica
8. Halo 3
9. Perfect Dark XBLA
10. Battlefield 1943

In no particular order

• Mass Effect
• Mass Effect 2
• Shadow Complex
• Halo 3
• Borderlands
• Bioshock
• Modern Warfare
• Metro 2033
• Dead Rising
• Alan Wake

1) Mass Effect

2) Mass Effect 2

3) Gears of War 2

4) Gears of War.

Top 4 will do

1. Halo 3
2. Mass Effect 2
3. Mass Effect
4. Call of Duty 2
5. Resident Evil 5
6. Alan Wake
7. Bioshock
8. Oblivion
9. PGR4
10. Condemned

1.  Lost Odyssey

2.  Infinite Undiscovery

3.  Mass Effect 2

4.  Alan Wake

5.  Mass Effect

6.  Forza 3

7.  Halo 3

8.  Tales of Vesperia

9.  Star Ocean The Last Hope

10. Halo Wars

Only including exclusives or games on PC too

1. Mass Effect 2
2. Gears original
3. Mass Effect
4. Halo 3
5. Gears of War 2
6. Ninja Gaiden 2

Fable to sucked so I can't include it.

1) Bioshock

2) Assassin's Creed 2

3)Halo 3

4) Fallout 3

5) Left 4 dead 2

6) Rainbow Six Vegas

7) UFC 2010 Undisputed

8)Gears of War

9) Forza Motorsport 2

10) Virtua Fighter 5

In order:

1) Gears of War

2) Gears of War 2

3) Fable 2

4) Metro 2033

5) Alan Wake

6) Condemned: Criminal Origins

7) Splinter Cell: Conviction

8) Prey

9) Earth Defense Force 2017

10) Dark Messiah of Might & Magic: Elements (It was better when I played it on PC though).

Special Mention: Perfect Dark: Zero

Worst Game: Two Worlds