GameSpark did a survey asking which voices between Japanese and English will you pick when Western games getting localized.
Japanese Voices - 49.51%
English Voices (Original) - 50.49%
Reasons for choosing Japanese voices:
-"Can't concentrate on playing the game when you need to read the subtitles."
-"Easier to understand when it's in Japanese voices."
Reasons for choosing English voices:
-"It's more fun to enjoy the game in original atmosphere."
-"It also helps my English study."