This is going offtopic, but I think Mace Windu was actually going to destroy Sidious, and would have, if it wasn't for Anakin. In my eyes, Mace was maybe the greatest lightsaber duelist of the saga, it was Force Powers that he lacked. Sidious could only have defeated him without the other Jedi Masters, but with them around to give Mace a head start, Mace would have won. But still, I think Sidious wouldn't have been so easily defeated if Anakin hadn't been around. So, Sidious was indeed in cotrol of what was happening, but he needed Anakin to kill Mace.