Lord Lucien
Lets all love Lain
Power's right about Anakin. RotS has, I would say, four Anakins.
First there's Anakin that uses his "gift of fury" as Dooku refers to it. He's not Dark but: "There was a thermonuclear furnace where his heart should be, and it was burning through the firewalls of his Jedi training. He held the Force in the clench of a white-hot fist. He was half Sith already, and he didn't even know it... And even now, he was holding himself back... Dooku could feel how Skywalker kept his fury banked behind walls of will."-----This is Gift of Fury Anakin.
Then there's Jedi "Light Side" Anakin: "...but Skywalker had lost his edge: a simple taunt was all that had been required to shift the focus of his attention from winning the fight to controlling his own emotions. The angrier he got, the more afraid he became, and the fear fed his anger in turn... now that he had started thinking about what he was doing, he could no longer walk.-----This is Light Anakin (in a sense), the one that restrains himself.
Then there's tEh Z0ne Anakin: "But Palpatine's words rage is your weapon have given Anakin permission to unseal the shielding around his furnace heart, and all his fear and all his doubts shrivel in the flame*... his firewalls have opened so that the terror and rage are out there, in the fight instead of in his head, and Anakin's mind is clear as a crystal bell. In that pristine clarity, there is only one thing he must do. Decide. So he does. He decides to win."-----This is Zone Anakin, who uses his rage with total clarity and focus.
And then of course there's Vader. I won't get in to his quotes because we all know he was powerful, dangerous, and totally f*cked in the head.
*--my emhpasis, to show that Anakin's not fueled by fear and doubt, like Vader.
I'll say this, though, Power: nowhere in these passages does it indicate that Zone Anakin is even touching the Light Side. Rage is the word repeated a few times and, we being all big Star Wars nerds, know that that's something only Dark Siders use---Windu has ground with his Vaapad there.
As for the novel's quotes on Mace and his Vaapad against Palpatine: "Vaapad is a channel for Darkness, and that darkness flowed both ways. He accepted the furious speed of the Sith Lord, drew the shadow's rage and power into his inmost center--- And let it fountain out again. He reflected the fury upon its source as a lightsaber redirects a blaster bolt... Vaapad made him an open channel, half of a superconducting completed by the shadow."
Windu's Vaapad would make short work of Fury Anakin. He immersed himself in Vaapad and flung Palpatine's fury around---he can do it to Anakin. Especially if Anakin is still holding back his reserves of strength.
Light Anakin has no chance. He's strong but his restraints he places on himself weren't enough to get past Dooku, they'll not be getting past someone like Windu.
Zone Anakin I think would be the most likely one to beat Mace. Though Anakin's Dark use of rage won't help against Vaapad, his total clarity and focus worked bloody wonders against Dooku. If Mace can't submerge in to Vaapad quick enough, Zone Anakin would overwhelm him.
Vader of course is a dead man. Unrestrained fury hampered by a confused and clouded mind. Vaapad plus a little cool thinking on Mace's part gives him the win for sure.