Anybody saying it ALTTP is the best needs to take those nostalgia goggle off, it's a good game, but it doesn't even begin to compare with the later console games.
First Zelda game I played was OoT. I played Wind Waker around the same time, can't say which I played first but my first experience with ALTTP was on the GBA.
A Link to the Past is a superior game, IMO. It's structured wonderfully, it properly rewards exploration, making the player find every wandering discovery feel as if it was intentional and worthwhile, and its level of difficulty is at a nice fair level. It's not Master Quest/Zelda II/Links Awakening nor is it Wind Waker/Twilight Princess/Skyward Sword whose difficulty levels have become a bit easy.
In my mind, it captures the heart of the series; along with the level of heroism intrinsic with the series, it captures th whimsy of exploration and discovery better than any game that came after it.