Depends, I like the upper class British accent, it's my world favourite, while the lower class British accent, like my family, make me cringe. Also there are certain areas of the USA with quite good accents, but I'm mostly refering the areas that don't like, I won't be pointing any fingers though
But really, it's a dub, it'll suck just because of the types of people they usually hire.
Anyone seen the Gundam SEED dub? It made me want to pour hydrochloric acid into my ears, same with the Bleach and Naruto dubs... god no... >.