Star Wars: 10 Most Powerful Jedi - Ranked
4. Revan
Revan was a Dark Lord of the Sith during the Mandalorian Wars, and wreaked havoc upon the Republic with his apprentice, Darth Malak. A Jedi strike team captured and injured Revan, separating him from Malak, and brought him before the Jedi Council. He had his mind wiped, and was given a new identity.
The Jedi had never used these methods on a Sith before, which highlights how much respect and fear they had for Revan, and the damage he could cause to the Jedi Order if he remained their enemy.
Revan was brainwashed into following the Jedi Order, and was sent to the heart of Darth Malak's new Sith Empire. He led the Republic Fleet against Malak, and defeated the Sith Lord.
As a Jedi, he overthrew the Sith Empire, and sent the Sith into disarray. His raw power within the Force was uncontested, and when acting for the Light Side he was a truly overwhelming foe, and therefore he was an incredibly powerful member of the Jedi Order.