6. Marka Ragnos
He was the best duellist of the whole Star Wars Saga. If you adore lightsaber battles, you will love Ragnos. He was really popular as the best and crushed any who contradicted him in single combat. However, his control of the Force wasn’t the best. He took another awesome Sith as a student, Darth Vitiate, and also returned as a spirit. He ruled and unchallenged for more than one hundred years during his life.
His soul meandered for millenniums. However, later on, he was sealed off by a Jedi for good.
5. Revan
He was a Jedi who wanted to protect the innumerable lives on the external edge that were debilitated by the Mandalorian intrusions. However, the council declined to let him or any Jedi intercede in the war. Revan then showed the best diplomatic capacities and leadership ideals and marshaled a colossal number of Jedi to fight battle with him, thereby ignoring the chamber. His padawan Malak followed him. Furthermore, that group won the war for the Republic. However, they didn’t return. Rather, they found the Star Forge, an automated shipyard that permitted them to create a monstrous armada and give them power, which tempted them to becoming Sith. Darth Revan turned into the Lord of the Sith and Malak became his apprentice.
Revan was called a truly intense Sith Lord, ready to turn Jedi as he wished and pick up allies from all around.
He was later caught by the Jedi and mentally conditioned to change over back to the light side. As a Jedi again, the third most intense Jedi ever, Revan vanquished his apprentice, now Dark Lord Malak and was pronounced the legend of the Republic.