I've been playing a lot of BlazBlue: Continuum Shift Extend this past week, and while the game is excellent, constantly having to hear English voices from other players' characters online is a real pain. While some characters have decent English voices (Rachel Alucard's voice fits the character perfectly, and Relius Clover's voice isn't too bad), a couple of main characters like Noel (who I mentioned before) and Ragna have terrible voices, and Iron Tager just sounds like Captain America.
Oddly, the voices people select also make it easy to tell who's going to be a serious challenge; people who use the English voices usually aren't as good as the people who set the voice-acting to Japanese at the start and never look back.
(They changed the default announcer again for this game, too! What the hell, ASW!)