I've used them both equally but again been so long I really don't remember preferring one. I just kind of left whatever was in there at the time since I did have SF2CE back then. I had this long distance gf of sorts out of the country and she needed a US Gamecube back in 01 so she had this order through the US of a US Genesis (2 of them) and a big box of games -- for me to ship the new GC down there I got to keep the 20~ games and the system so that's what got me started on it back in the day.