Sailing the Blue Skies since 2001.
Legend of Zelda: Ocarina of Time (N64/GC through Zelda: OoT Master Quest and Zelda: Collector's Edition, Wii VC)
Update - I decided to give this a replay, and while the gameplay definitely feels more stiff than the GC Zelda titles, the game's level design and music hold up quite well today. I think that there is a possibility for it to sink slightly, but I doubt it'll ever leave the Top 10. It's still fantastic.
Remember when this game came out? I sure do...in fact, here's a story behind how I became a gigantic fan of this game.
Flashback to 1998, November. My good friend Chris (yes, same one in Snow Dragon) had a few friends over and he just picked the game up. I was amazed, enthralled even about what I was watching. I couldn't believe what I was seeing. When I started the game at his house, I recorded it. I got through the Deku Tree, but not much farther. When I returned home, I asked my mom if we could go and get it, but alas, she was busy working and didn't want to take me. I had the game on reserve as it was, but I just had to witness the game again, so I watched my tape. My mom walked in...and decided to take me down if I got it quickly. So I did. What's best about this story is when I got it, I became addicted to the stellar gameplay and level design. So addicted, I beat the game in about 20 hours in 4 days. 5 minutes before Chris beat it, who had it a week before I did (he was quite upset at me, btw...it's all good now, though ^^). That's how much I loved this game, and it's one of the few games I played after beating it more than I played trying to beat it. Sure, it doesn't stun as well as it did in 1998, but the game still holds up remarkably well in the audio/gameplay/level design department.
If you have the opportunity, I heartily recommend going for the Gamecube Legend of Zelda: Collector's Edition. It features the 2 NES Zeldas along with Majora's Mask and OoT. 4 classic adventures is worth the money (however, it was a free promotion, so I wouldn't plop down more than $20 for it). The load times aren't bad at all, the save files are all separate from each other (and small), and the N64 games have a slight graphic boost.
Although, you probably won't find either the Collector's Edition or the Wind Waker bonus disc for $10 or less, so the Wii Virtual Console version is easily worth the admission price of $10. The graphics have gotten a bit more smoothed out than the GC revs (but the textures are a bit more noticeable, from what I hear), and the Stone of Agony is now pointless since they stripped out the rumble. Otherwise it's the same great game.