Kabal
Smoke
Rain
Maybe Jade, Sindel and Nightwolf (don't know how popular they are next to the former three)
Despite their popularity, the top three haven't made many appearances in non-compilation games. Why is that?
I'm not bringing up Post-MK3 characters because people don't fail to notice how underused they are. But these three are all from the Trilogy era, which, according to fans anyway, should give them free tickets to return in another game, as playable characters.
Kabal is MK's Flash equivalent, had two fatalities in MK3 suitable for a T-rating, and again is popular, but he didn't make the cut for MK vs DC Universe (no MK3 characters did). Why does NRS seem so determined not to use him?
MK3 vs Post-MK3 my ass, it's really MK2 vs Post-MK2.