Xesh vs Darth Malak

Round 1: Tython
Round 2: Star Forge
Round 3: Even ground

1.) Probably Xesh given his experience with how the planet works.
2.) Obviously Malak, especially if he's as charged up as in KotOR.
3.) Malak. He's one of the greatest Sith in history for a reason, tbh.

Xesh atomizes Malak in every round

inb4 ILS

EDIT: Dammit.