As the title states, this thread is for anime dubs that you just found disappointing. Please, no comments like "all dubs are disappointing/bad."
I'll start, though I don't really have much to say.
Love, Chuunibyou, & Other Delusions: I wanted to like this dub. But…the voices weren't as good as I hoped for. Don't get me wrong: they weren't bad, but I still found them disappointing, especially Rikka's voice (though she was still cute). And I'm the kind of person who likes to watch dubs (though I don't mind watching subs).
Watamote: I wanted to like this dub too. However, Monica Rial (VA of Stocking from Panty & Stocking--possibly my favorite dub, Hyatt from Excel Saga, May from Fullmetal Alchemist: Brotherhood, and Index from A Certain Magical Index, to name a few of her roles) as Tomoko wasn't very fitting. A shame, for I really like Monica Rial.
speaking of Index…
A Certain Magical Index: I haven't watched much of this anime (around 6-7 eps or so), but I thought the dub was alright. Then a friend told me about Accelerator's dub voice, so I decided to check it out for myself. My god, it was terrible. I can't remember it, but I don't want to listen to it again, for I know it was really bad. I haven't really gotten around to continuing Index (and probably won't for a while--not because of the dub, though, mainly due to lack of interest), but if I do, I'll definitely watch it subbed.
Steins;Gate: I haven't watched that much of this anime either (I'm a slow watcher), nor have I seen much of the dub, but from what I've heard, I consider the sub to be a lot better. Mayuri's dub voice is nowhere near as cute as the original (then again, she WAS voiced by Kana Hanazawa in the original, and she's known for her adorable voice), for one thing. Besides, Okabe didn't really do that crazy voice of his in the dub. Maybe I didn't watch enough of it, but still.