Swordsmanship only. No powers unless it is required for their fighting style. Mace gets his lightsaber, Aragon gets a vibroblade. Fight takes place on a Bespin landing pad. Who wins?
I'm tempted to side with Windu here.
Aragorn didn't have many astounding feats of swordsmanship apart from cutting down cannon fodder. Have them start a good distance apart, and give Aragorn his bow and like, phrik-headed arrows, I think he could pull a win here.
At the minute though, Windu wins 7-8/10