Really I'm stomped by the notion how in ROTS Dooku believed with ventress at full power or savage with the power of Darth maul would be able to take down Sidious. So whether that is arrogance on his part, Vader is a whole nother ball game and then add Anakin. The team definitely takes sabers IMO, however I am also stomped that Sidious could move faster than Anakin could perceive him, fading in and out of existence. His force powers are enough to where he could really do what he did to maul and savage as seen by how Anakins force shield has constantly been broken by lower levels of the force, and palatine is way above anyone Anakin or Vader have ever fought. So hard to say.