I love Butterfly. I also loved the upbeat-ier remix of it that I think first appeared in 4th mix. Don't know if it's still on the current track lists. But my big favourite is Healing Vision ~ Angelic Mix. It's the most difficult song I can finish with a decent rating on Heavy, which'll probably tell you I'm not that good at DDR, though I did used to play a lot, when it was really, really popular and people used to gather round machines to watch you. Because this is no longer the case, at least where I play, and my huge ego has forced me to retire the game. ^^

Actually, I used to be a much bigger fan of Pump It Up (PIU), the 5-button Korean rip off. I loved the classic-dance remixs and all the k-pop songs. I don't think I would have courted my current girlfriend without it. I still play it on PSP sometimes, but obviously, it's not the same.