Hmm this is tough. Out of those three consoles I only owned the Wii and briefly a Xbox 360.
1 - Fire Emblem: Radiant Dawn
2 - The Legend of Zelda: Skyward Sword
3 - Wii Sports
4 - Mortal Kombat: Armageddon
5 - The Legend of Zelda: Twilight Princess
This was so close to being number 5 - Super Mario Galaxy 2
Right behind that would be Dynasty Warriors 7 and Halo 3.