IIDX Gold - I like anything lustrous.
Also liked the songs set.
IIDX RED - red and black was always a good combination, match it up with trance stuff, and you're good to go.
IIDX Happy Sky - one of the "relaxed" IIDX interfaces I've ever seen, which is a good thing. It matches many of the songs there.
IIDX 1st-3rd Style - Well, nothing beats old-school. I just missed those.
