Peak Anakin Skywalker is capable of utterly tooling and humiliating Count Dooku, one of the most gifted and powerful duelists in galactic history, once the greatest Jedi produced through Yoda's tenure up to and including the Order's prime, to the point where Dooku's strength in the Force was turned into a "joke". He's considered by both Nick Gillard and the narrator of the RotS novelization to be perhaps the most powerful Jedi to have ever lived.
Bane, meanwhile, struggles against no-name shadow assassins and a bunch of featless Jedi. Sorry, but Rastka Lsu + battle meditation still isn't a match for Dooku, and Bane was struggling a lot more against her than Anakin did against Tyranus. Heck, f*cking Hett was able to dodge his Force lightning, lawl.
The only way this is a fight is if Anakin is holding back/conflicted as he is in the early part of his fight with Dooku, but even then he's still making Dooku's arms weak with his blows and clearly outperforming Obi Wan, who ridiculously outstrips Bane as a duelist. Anakin spitestomps.