Wii Fit
Mario Kart Wii
Super Paper Mario
Super Mario Galaxy
Super Smash Bros. Brawl
Then, given money and time constraints:
Mario & Sonic at the Olympic Games
MySims
Dewy's Adventure
Nights: Journey of Dreams
Zack & Wiki: Quest for Barbaros' Treasure
Lego Star Wars: The Complete Saga
Finally, if/once I find any real good deals:
Battalion Wars 2
Metroid Prime 3: Corruption
Super Monkey Ball: Banana Blitz
Mercury Meltdown Revolution
Rayman Raving Rabbids 1 & 2
Geometry Wars: Galaxies
Civilization Revolution
Space Station Tycoon
Simpsons Game
Those are far too many games in under two years for me. And I still have VC to catch up too. And Twilight Princess.