Jerec (DF2) vs Darth Vader (ROTJ)

Sabers, Force, all-out. Standard rules apply.

Vader all rounds.

Vader every round, handily.

Yeah. He is about three or four leagues above him

Vader, all.

Jerec has both Force Lightning and Force destruction. He would likely take a narrow win (or at least put up a hell of a fight) in a Force-based contest. 

In sabers and all-out, though, this is absolutely Vader's game, no contest.

Vader

Vader wins, for once.