Darth Bane Replaces Sheev's Apprentices

1. Darth Bane takes Dooku's place during the AotC Geonosis duel with Yoda. How well does he do? Can he win?

2. Darth Bane takes Maul's place at the precise moment where Savage dies (imagine Maul stays with Savage's corpse while Bane fights or something). How well does he fare against Sheev?

3. Darth Bane attempts to save Luke Skywalker from being shocked to death by Emperor Palpatine at the climax of RotJ. Is he able to save Luke and/or kill Sidious?

Two runs: 1st assume DoE Bane. 2nd assume peak Orbalisk RoT Bane.

Stops at 1. Specifically Yoda gives him the dooku treatment.

Not a gauntlet. Read, motherfucker.

1. Bane does significantly worse than Dooku. Not a good fight at all.

2. He does worse than Maul. Once again not a good fight.

3. No. He dies instantly.

1.Yoda has an easier time with him than with Dooku.

2.Sheev has an easier time with him than Maul.

3.Sheev one shots.

Obviously, the only discussion value to be had is whether he does better than the apprentices since everyone knows he has no chance of winning. 

1. He's not as good as a duelist as Dooku and Dooku was pretty much manhandled. He might last a little longer if he relies on Soresu but the minute Yoda has him backed into the corner he goes down quickly. 
2. He falls quickly in a one-sided fight like Maul did in Shadow Conspiracy where he wasn't rage-amped; only desperate, unlike the episode itself where it is visually clear he was rage-amped and actually made Sidious work for it. 
3. Dies instantly. Vader or rather Anakin was super-amped by light side love. Base Vader would have been killed instantly too.

bane do worse than them in all rounds .
he would die in all rounds
and he won´t be able to "defeat" sidious in round 3
or "stalemate" yoda in 1st .

Bane becomes a broomstick.

Bane dies