1. Super Mario Galaxy ( my favorite game this gen so far)
2. Mario Kart Wii ( over 200 hours of play, easily my most played game this year)
3. Metroid Prime 3 ( still the best 1st person adventure\shooter on wii)
4. No more Heroes ( the boss fights and the wacky story makes it a unique game)
5. Zack and wiki (best puzzle\adventure game i played in a long time)
honorable mentions, Okami, RE4 and Zelda TP, all three could've easily been in my top 5 but i played them first on GC and PS2.