JRPG's. Most of the one's I've played have had pretty interesting stories, good characters, pretty music, creative and colourful places, all that jazz. Even the one's that weren't very good had a redeeming feature or two. And even when they come off as cheesy, at least they've tried to do something with the story, I find it quite endearing. And seriously, when they're good, they're fucking good.
WRPG's aren't really for me. I dunno, it all just seems kinda repetetive to me, "Get x from this place, stop evil overlord". They mostly just seem to be LotR rip-offs. The exceptions tend to be pretty damn good though, like Mass Effect.
Never played a Korean one o.o