Japanese voices are overall better but Jann Lee's japanese voice is garbage. His english one better. There are only a few I prefer in english.
Lol, Ayane is just as obnoxious in English or Japanese. Actually she's more trollish in English. But dat English Kokoro voice <3.
Kokoro's laugh is good lol. Marie Rose's voice in english and japanese makes my ears bleed. It like hearing nails being scratched on a chalkboard. That how painful it is to hear lol.