Here's the thing about “power” when it comes to Anakin/Vader and the Force - there is actual power, and then there is potential power. read more
Pre-suit Vader - One of the top 5 most powerful Jedi, ranking highly with the likes of Yoda and Mace Windu, and on the path to surpassing Darth Sidious. Post-suit Vader - Greatly hindered physically, but still decently powerful mentally. read more
Darth Vader is by far the most powerful sith lord because of his potential, and he still fulfills his destiny and takes down the sith. With that being said he reached his potential, and became powerful, and was able to join Yoda and Obi Wan in a method of the force that Yoda taught Obi Wan. read more