Batman verses Vader

[popeyespappy]

Meh... He wasn't Vader yet and that wasn't a Jedi, but ok. He killed one of the weakest villains ever.

Dooku was a Jedi Master who fell to the dark side of the Force and became a Dark Lord of the Sith, known as Darth Tyranus. Born into a noble family on the planet Serenno, he was the heir to vast wealth and the noble title of Count. Dooku was taken by the Jedi Order as a child and apprenticed to Thame Cerulian. As a Jedi Knight, he took Qui-Gon Jinn as his first Padawan, and later trained Komari Vosa. Dooku was a respected instructor in the Jedi Temple and one of the most renowned swordsmen in the galaxy, on par only with Masters Yoda and Mace Windu.

http://starwars.wikia.com/wiki/Dooku

Not one of the weakest villains ever...