Sidious and Maul would kill them easy, your talking about a Sith LORD and Maul is the man with a saber and he has great force powers just never was really shown in the movie, but Vader is good, think of this though when it comes to mitiglorians (or however its spelled) vader has alot much no were near as much before he was human, he's mostly robot and mitiglorians are in your body cells and vader lost a lot when he was changed into a robot. As of dooku sidious can handle him no prob. so maul and sidious win easy