How do you know that the Japanese voice acting isn't terrible? You have no cultural experience to gauge the authenticity of the voice acting.
And @konnichiwa; I know; It's understandable for movies and (can't really think of any) I guess a few large scale games with extensive voice acting and lip synching.
But Megaman ZX? Where it's nothing more than a handful of sound clips with 2d sprites? It's stupid, really stupid, to care at that level.
EDIT: I do this about movies, myself. Live action movies, at least. Not cartoons. (Yes, anime is a cartoon. Look up its japanese meaning, dipshits.)
Crusty VGchartz old timer who sporadically returns & posts. Let's debate nebulous shit and expand our perpectives. Or whatever.