A Link to the Past for me, True Ocarina blew me away but A Link was just an amazing loong game. I also loved Zelda 2 When most people didnt get it, I loved it. I can remember getting it as soon as it came out and my nintendo power had a full world map and tips on getting through the first dungeon and finding the candle.
I really enjoyed this Zelda game was one of the few where you controlled Link as an actual platformer style character rather than the 'birds-eye' view.
Link to the past was an excellent game, but Ocerina of time just blew me away. The other zelda games deserve credit too, twilight princess had big shoes to fill.
You know I actually enjoyed The Legend of Zelda II. I bought the NES with Zelda II and Final Fantasy about a couple years ago. Although the game differs from the rest, I do have to say I liked the exp gaining in the game.