Tekken. By far.
That could be many different forms of the game, but the one I mean is the best. Play it here if you are a member.
oh man, i miss arcades. there was one in the mall where i worked, and i use to go there all the time, i loved it in there, then i was going to go there one day and it was gone :( i did like to play all the ping pong games though, and mortal kombat