1. The Legend of Zelda: Majora's Mask
2. Metroid Prime
3. Resident Evil 4
4. Wii Sports
5. Super Smash Bros. Melee
6. Super Mario Galaxy
The poll results look pretty good to me. It was really tough choosing which game to vote for, as there were 3 that deserved strong consideration in my opinion. I wavered between Metroid Prime and Majora's Mask more than once - but decided the oddness and overall impact (on me) of MM was enough to earn top ranking. Oddly, I don't think I would've voted other Zelda games as highly because they feel so standardized... but MM was enough of a one-off sidestory that it had unique appeal.
The most surprising result is how poorly Resident Evil 4 did, with only 8% of the vote. That seems low for a game that is so carefully polished, that was tremendously successful across multiple platforms, that changed the course of a popular franchise, that provided more action-filled set pieces than I could've imagined, and that has been replayed dozens of time by countless gamers over the years.