Hey, great list! A few interesting picks that I would have never guessed, especially number 8. Coming up with a top 10 is quite hard. Here are mine:

1. The Legend of Zelda: Ocarina of Time
2. Resident Evil 4
3. Banjo-Kazooie
4. Sonic the Hedgehog 2
5. Ninja Gaiden Black
6. Half-Life 2
7. Final Fantasy VI
8. Chrono Trigger
9. Conkers Bad Fur Day
10. Super Mario World 2: Yoshis Island

My list might look completely different tomorrow ;).