I prefer Twilight Princess. The game's just about bigger than Ocarina of Time (even though it has the same amount of dungeons) and I prefer the Wii controls of the game.
Oh, and if you haven't got a Wii, you can play Twilight Princess on the Gamecube as well.
I don't have an N64, but I did play Ocarina of Time. I have a collectors edition disk with four Zelda games on it, including Ocarina of Time.