i'll add to list if people post in the thread...
Ace Combat 6
Amped 3
Banjo Kazooie
Battle Angel
Blue Dragon
Chrome Hounds
Crackdown
Dead or Alive 4
Dead or Alive Code: Cronus
Dead or Alive Xtreme Beach Volleyball 2
Deadliest Catch
Dog Tag
Eternal Sonata
Fable 2
Forza 2
Fuzion Frenzy 2
Gears of War 2
Gears of War 3
Halo 3
Halo Wars
Hour of Victory
Infinite Undiscovery
Kameo: Elements of Power
Lost Odyssey
Naruto: Rise of a Ninja
Ninety-Nine Nights
Outfit
Perfect Dark Zero
Project Gotham Racing 3
Project Sylpheed
Saints Row
Star Ocean: The Last Hope
Star Trek:Legacy
Time Shift
Too Human
Virtua Fighter 5
Viva Pinata: Party Animals
Bomberman Live
Portal: Still Alive
Alan Wake
APB
Burnout Paradise
Call of Juarez
Command & Conquer 3
Dog Tag
Fable 3
Gears of War
Huxley
Last Remnant
Mass Effect
Metronome
Overlord
Shadowrun
Top Spin 2
Two Worlds
Xbox 360 Exclusive Titles:
Ace Combat 6
Amped 3
Banjo Kazooie
Battle Angel
Blue Dragon
Chrome Hounds
Crackdown
Dead or Alive 4
Dead or Alive Code: Cronus
Dead or Alive Xtreme Beach Volleyball 2
Deadliest Catch
Dog Tag
Eternal Sonata
Fable 2
Forza 2
Fuzion Frenzy 2
Gears of War 2
Gears of War 3
Halo 3
Halo Wars
Hour of Victory
Infinite Undiscovery
Kameo: Elements of Power
Lost Odyssey
Naruto: Rise of a Ninja
Ninety-Nine Nights
Outfit
Perfect Dark Zero
Project Gotham Racing 3
Project Sylpheed
Saints Row
Star Ocean: The Last Hope
Star Trek:Legacy
Time Shift
Too Human
Virtua Fighter 5
Viva Pinata: Party Animals
XBLA:
Bomberman Live
Portal: Still Alive
360 and PC:
Alan Wake
APB
Burnout Paradise
Call of Juarez
Command & Conquer 3
Dog Tag
Fable 3
Gears of War
Huxley
Last Remnant
Mass Effect
Metronome
Overlord
Shadowrun
Top Spin 2
Two Worlds







Only games I play on it are Total War games. But so those PC and 360 exclusives don't make you want a 360 because you can play all of those games on your PC, but for people like me those PC and 360 exclusives are just more reasons to buy a 360. Duke, put C&C3 on the list for the 360 & PC exclusives, same goes for Call of Juarez