Wii: The Legend of Zelda: Twilight Princess
DS: Sid Meier's Civilization Revolution
GC: The Legend of Zelda: The Wind Waker
GBA: Golden Sun (I never owned a GBA though, I played all my few GBA games on DS)
PS3: Flower
PSP: Jeanne D'Arc
PC: The Secret of Monkey Island/Monkey Island 2: LeChuck's Revenge*
Xbox: Star Wars: Knights of the Old Republic
*Yes, I've read the OP, but I don't break the rules here as I always considered this brilliant combo as one game. 
BTW@anyone who's interested: Monkey Island 2 Special Edition: LeChuck's Revenge, the HD remake of one of the best point&click adventure games ever created, was released on Steam/PSN/XBL/iPhone/iPad yesterday!
(I just bought this game for the 5th and 6th time in 19 years - LucasArts should reward me with a LeChuck voodoo doll plush...)
