I voted Kabal, Kung Lao and Raiden. If I had to pick between the 3, I'd go Kabal, just because everything about this character dominates. Insane play style, animations and a creative art concept . I mean this dude has a respirator, burn marks, nomad dashes, ponytails and hookswords. What more could you ask for? It would be great to see him in MKX, only toned down for balance reasons.
I never played too much Kung Lao but this guy has some crazy looking moves and is fast as hell. His character design is a cool spin on the shaolin monk archetype too. And his vest is as iconic as his blade edged hat. I 'll be playing him in MKX for sure, ready to IP Man punch some fools.
And lastly, I really enjoyed the feel of Raiden's move set in this game. That B3 reach tho. And those crazy wall combos... man.