English and Japanese 50/50. I used to be into a lot of Kpop and Cpop back during my Asian music peak (lol. And that was probably 4-5 years ago), and haven't touched the stuff until about a week ago. I've been listening to a lot of MBLAQ and C.N.Blue in the last week.
I just find Japanese music to sound more fluid (the words themselves). When I stopped listening to Cpop and tried listening to it again once I though 'how the hell could I listen to this before?'
It's too choppy for me. It just doesn't flow nicely (in my personal opinion as a foreigner).