That's not too surprising, as you played the worst one. Phantom Hourglass is the one Zelda game I will never, ever revisit again under any circumstances.
For 2D Zelda, I would recommend starting with A Link Between Worlds or Link's Awakening. Just about every Zelda game has some sort of gameplay gimmick, and they are hit or miss depending on the game, but Link's Awakening really doesn't. It's pure, unfiltered Zelda gameplay and design with nothing getting in the way of that. And a lot of people will recommend Link to the Past, and it's a classic game and you can't go wrong with it. But ALBW is the best that 2D Zelda has been, and I feel it surpasses ALttP across the board.
For classic 3D Zelda, Ocarina of Time is still as good as it gets (and I personally feel it's still the best overall game in the series). Majora's Mask is also amazing, but it's a very different thing and not everyone is going to dig it. And then 3D Zelda went downhill after that and became very inconsistent. Ocarina is one of two games (along with Resident Evil 4) that I would argue is objectively one of the 10 best games ever and would have to be on such a list.
And then Breath of the Wild obviously. It's a big change for the series, but a very necessary one.