Definitely PH. easiest zelda game i've ever played.
Minish cap is in my top 3, because it was super fun, i loved all the characters and the graphics, and there were good sidequests and bosses and items and things.also, the overworld was really huge and fun. phantom hourglass only had items from dungeons, except for the shovel, had not-very-good
cell-shaded graphics, had unrealistic, indistinct characters, and only one, really obvious sidequest.