He specifically said NOT AE. Reported for trolling.

SF4:AE is pretty popular on PS3 and 360 but I dunno about PC

TTT2 is popular right now but I don’t know about staying power. These games never really kept me interested for long but I’m also horrible at Tekken

3S has it’s online community but you probably won’t find many people playing it offline or at arcades. The problem with this game is that if you’re just starting you are going to have a massive learning curve because everyone online has likely been playing for 10 years now. I still think it’s the best SF game out there.

ST/ ST:HDR an oldie but a goodie. I can’t find anyone online (PS3) to play with but there are dudes in the arcades around here.

I usually base my decision on offline/arcade following in my area and is online play at least decent most the time.