Its the worst of all Zelda's to me, and nearly caused me to give up on the franchise as a whole. Its a bad game with art that clashes badly with my personal taste. I deeply hate this game.
I can't say I hated it, for years that game was Skyward Sword until I calmed down over it some. But Twilight Princess wasn't the most exciting or interesting Zelda game, that's for sure. After I beat the game, I didn't share any kind of connection to it tbh. The story is kind of all over the place and weird. The events that take place are interesting in theory if you look at it from the POV of the storyboard but it was all executed poorly, outside of maybe the King Bulblin
What I really can't excuse is the NPCs and the overworld. Such a strange set of characters in this game, it's like you're in some part of the Twilight Zone and manakins were brought to life. Seriously, these characters in Twilight Princess are fucking weird. And I like that touch in a Zelda game at times, it's always been there in the 3D games, but not like this. It's like all the characters have mild or severe depression and have nothing interesting to say, have no true life or excitement to them. And the ones that do play a role towards the story are strange and shoe-horned almost. Like seriously, who thinks an old bar owner being attracted to a Native American Shaman after delivering a wounded Zora is good character development. Like what the actual fuck were they thinking with that. Yeah this is good stuff guys, this horny bitch is going to come to like this boring Shaman who pays her no attention, and that'll be it for their development. Who thought that was anything other than weird? Or The Resistance for example, they had knowledge of what was truly going on — to an extent. But they didn't really do anything in the game. At best, they tipped Link off as to where he might go next. Darunia in OoT did more than all four of those guys put together, more action than all four in just two levels and some cutscenes that he was in
TP is almost exclusively a flop because the NPCs were so bad. Just bad. They were almost a complete flop, the entire cast of regular characters. Nobody is truly all that interesting in this game and that's what I think went wrong the most for this game's overall quality. It affected the dialogue, the experience, and most of all, the overworld and exploration. You simply cannot win in an overworld as large as this one when there is nobody, hardly ever, saying or doing anything noteworthy…
I challenge fans of this game to argue in favor of the characters they think were excellent and I'll tell you the opposite. This game does not have hardly any good characters in its world outside of the main characters (Link, Zelda, Villains, etc)