No the question is "Who would you TRAIN to be a Jedi?"
Stats don't matter at this point, throw them out of the window and approach this like it was real life. You know these four people, you are a Jedi, and you can train a number of the four. Who would you train?
As for me, Mission and/or Zaalbar are my choices.
Mission: Thinks on her feet, and she is young enough to take the training without having to destroy too many pre-concieved notions. (I'm guessing that's why they take 'em when they're young... any other ideas?)
Zaalbar: Walking carpet with forcepowers and a lightsaber (Or sabers.) Need I say more?