Originally posted by ScizardIt's true.
That reminds me actually, I've heard that Ben Kenobi describes Vader as more powerful than Anakin during their fight in the same source that describes Ben as struggling to fight Vader. Do you know if there's any validity to this?
From a Certain Point of View, Jedi vs. Sith, and Lords of the Sith all confirm that ANH Vader was stronger than he was during RotS.