All the zelda games I have played have been of the highest quality, with Ocarina of Time being the biggest and best.
Wind Waker is a good game, but not as good as Ocarina (despite so-called graphical dvances) which is a larger game - more dungeons, more originality and the with age change effectively doubling the size of the game.
However, despite not living up to Ocarina this is still a class game, although more dungeons next time please (and it has to be said a few of them where a bit of an afterthought - particularly final dungeon).
I have to score zelda games seperate from other because of their high quality and so, of the games I've palyed, and when compared against each other I would give:-
Ocarina (n64)9.9
Links Awakening (gameboy) 9.6
Link to the past (SNES/GBA) 9.5
Wind Waker (gc) 9.3
Majora's mask (n64) 9.3