Amiga version of "Super Street Fighter II : The New Challengers" is my favorite among other versions of "Super Street Fighter 2" including coin-up version.
Of course I'am talking about versus game and keyboard input. Street Fighter games are not playable by joystick unless you have real arcade stick.
Also I shuld say that, although I love it, Amiga version is far different than coin-up game. It is not as fast as original one (i think it is too fast to play) and has smaller sprites.