Did Mace Windu defeat sidious or was he playing possum to manipulate...

...anakin into turning?

Most people are under the impression that sidious was toying with mace and pretended to be beaten to sway anakin. Now there are some people who believe that mace actually beat sidious and was going to kill him.
If you read the eu you would know that windu invented and practiced a jedi lightsaber form called vaapad, a variation of juyo that channels your opponents darkness to use it against them. It is described as more of a mindset than a form because it brings the practitioner very close to the darkside. In order to use vaapad you have to relish in the victory of the battle. (Darth maul was a practitioner of juyo, just to give you an idea.)Mace was a master of vaapad and could use it without losing himself to the darkside. Some people believe that mace was the perfect storm sort of speak to fight sidious and with his usage of vaapad was able to gain the upper hand.
I always thought that mace was being toyed with simply because even without a lightsaber sidious is so powerful with force lightning that he could kill mace if he went full tilt. Since i have read more about mace and after rewatches of episode 3, i am torn. I would like to think mace was going to kill/could've sidious but because of the prophecy anakin was destined to interfere. It makes mace so much more interesting due to his knowledge and power.
What do you think?



http://www.imdb.com/list/ls063670214/