Hmm . . . interesting choices for Jedi and Sith.
For Sith I would have to go with Sith Lord Revan and Bane. Bane idolized Revan so that would be an easy choice.
Jedi, I think Jinn would be a very poor choice for Luke due to his [Jinn] short experience with Anakin. I'm going to risk it and say Jedi Revan and NJO Luke. Although Luke would end up trying his best to save him later on.