I got 2 and 4.
4. I owned this game, but rarely played it. I would usually watch the computer fight itself in the built-in tournament mode-quite entertaining, actually. By the way, the versions of SFII available on Nintendo systems are:
Street Fighter II (SNES)
Street Fighter II-Special Championship Editition (Gen-VC)
Street Fighter II-Dash(TG16-VC Import)
Street Fighter II Turbo (SNES)
Super Street Fighter II (SNES)
Street Fighter II (GB)
Super Street Fighter II Turbo Revival (GBA)
I've joked you could do a special retroactive on RFN where everyone would pick one or two versions and you could compare them. Also, I've been meaning to do a parody of Angels With Filthy Souls (the fake gangster movie in Home Alone) in which the guy counts through versions of SFII, which takes so long the other guy leaves before the first guy starts shooting and instead he sits down and does a sudoku.