My biggest problem with
Twilight Princess was that you only used a lot of the items in the dungeon you got them in. Like, the Spinner and Statue Rod were almost completely useless, even if they were interesting and provided fun new mechanics. They were creative, though. The overworld could have been used more, too, because it felt a bit empty. I also hated finding and killing all of the damn twilight bugs in the first half of the game.
Other than that, it was pretty flawless, though I may be biased since it was the first Zelda game I completed in full. I loved the dark graphic novel-esque graphics, the characters, the settings, the music, the boss fights and the story. It needs to be the next one to get an HD remaster. I'd buy an NX for it for sure, especially since it looks like the new Zelda will be coming out on the NX, too.
Queens Telma, Midna, Ilia and King Malo and Collin >>>
Playing as a wolf and the almost seamless transformation >>>
The forest temple >>>
The fun with magnets and locating the Goron elders >>>
The ice level in the second dungeon of collecting the mirror. The snowboarding, the mansion, the boss, etc. >>>
The story of the Zora Queen and her son >>>
The sight of the frozen Zora Falls >>>
The dungeon in the sky with the Cuckoos and double hookshots >>>
Zelda slaying and doing a lot in the story >>>
The dragon boss, the Zant fight,
the tennis match with Zelda and the sword duel with Ganondorf
>>>
The ice mansion remains one of my favorite Zelda levels ever, and the dragon fight and final boss fight are some of the most cinematic fights in the entire series.