Well, after nearly a decade of firmly being a KOF > Street Fighter guy, I have officially flipped sides.
I've been playing a lot of 90s Street Fighter and KOF, particularly Street Fighter III: Third Strike, Street Fighter Alpha 3, and KOF 98: UM, all which came out in 1998 and 1999. Both Street Fighter games are better, especially in gameplay which in fighting games matters the most. Even Super Street Fighter II, while not as pretty or flashy, has slightly better gameplay an balancing.
What strange times we live in.