Luke Skywalker (RotJ) vs. Asajj Ventress

Luke as of Return of the Jedi

Ventress as of The Clone Wars S5

Takes place on the forest moon of Endor.

Luke.

Likely Luke

Luke was definitely superior to Asajj by RotJ

Luke takes this.

Luke, but there is definitely room for debate on Ventress's end.

Ventress kills him.