Anakin vs Anakin
(Excuse the continuity errors)
The jedi have been all but destroyed in The Great Jedi Purge. ROTS Anakin Skywalker must go to mustafar system to destroy the new Dark Lord of the Sith, Darth Vader. Anakin understands that Vader has killed or aided the killing of all his close friends and companions including his master Obi Wan Kenobi, and is as angry as when his mother died on the Tatooine system. Vader is now completely controlled by both his new master Darth Sidious and the dark side of the force. Anakin appears from Padme's ship at the same time Obi Wan does on ROTS, and a battle starts, remember Anakin sees Padme choked by Vader...
Who wins...