Well, they said here that it was placed in America when in fact it could be anywhere and the characters behave much more like a japanese person than an american, especially on the subjects in question.
Not only that but the cast for the japanese voices are incredibly famous in Japan and by fans and they all do amazing jobs.
Now, since Eternal Sonata had voices, also Valkyria Chronicles, Resonance of Fate, Lost Odyssey, Disgaea, Atelier Rorona, just to name a few, many from different companies and publishers why can't this one have it ?
I think it's not ONLY the case of which is better, nor a person's own preference but also the chance to experience a game in a different way.
A little of Catherine but when people say Atlus VA are good I most of the time do not agree. I think the dub in Persona 3 was horrible and Persona 4 bad. Bearable ? sure but far from good. It's not because a game has better dub than Star Ocean (total crap) that I should consider it good, right ?