Personally, I'd scratch DJ MAX and EZ2DJ off the list. I say that because IMHO, none of the Korean and Taiwanese DJ-based games don't have that strong appeal
I'd take O2Jam out if we are talking about a wider scope (because O2Jam is only for PC use).
So, imo, I'd still choose BM IIDX (since it has an actual game cabinet that is more superior to any other DJ game on earth). Then followed by O2Jam (only because there is a super-impossible version of Fantazindy which no human can ever clear)..
Then you know what comes after
