I want to talk about SFA3 perfection in spriting. I think SFA style is the better in 2d art. Nice animations (not to much, but just perfect for the function of the game and dynamic action).
But a couple more of words about the spriting. Look at that example:
The principal quality of Capcom Alpha sprites is the simmetry, perfect voumetry of figures (look at blanka expecially). A perfect work on muscles and anatomy (look at sagat, adon or chun li Alpha version). I tried to learn from that great work and i'm still wondering about it when i'll back looking at them.
I love also SNK work on King of fighters series, but this one i think is greater, and you? What do you think? What's your favourite sprite style in videogames?