13. General Grievous
By the time we see General Grievous, he’s more machine than man. He plays a big role in Star Wars: Revenge of the Sith and in Star Wars: The Clone Wars. He isn’t classified as a Jedi or Sith, although he delighted in killing Jedi over the years.
Grievous also trained under Count Dooku and became an excellent lightsaber duelist. With his mechanical arms, he was able to wield four lightsabers at once. Most Jedi and Sith only carried one, and on occasion, some carried two. Having extra arms gave him an advantage that most did not have and it made him difficult to fight
Obi-Wan Kenobi and General Grievous duked it out in one of the best lightsaber duels that we’ve seen in Star Wars in Revenge of the Sith. They also duel in “Bound For Rescue” in The Clone Wars. While the above preview doesn’t show the full action, you can tell that there’s plenty of resentment between the two characters.
While Grievous doesn’t only fight Obi-Wan, the two seem to have a rivalry going on, which makes things more entertaining to watch. Grievous is a tough opponent no matter who is going up against him due to his skill with lightsabers.