Look, stupid obvious question cause I know everyone's gonna say English,
you don't know a damn thing about RPM. i'd think very few would go strictly English. there's a bunch around here that are weeaboo and won't listen to ANYTHING in English. but i'd say the majority would go half and half.
with me, it depends on the situation. if the English sounds good, i'll go with English. if the English is terrible or unavailable, i'll go with Japanese. if the English is
laughably bad, like in the two examples you gave (MMX7 and Resident Evil), i'm going to go with English. as for other languages, i don't bother.
i think we've had this conversation before, actually.