On the contrary, as I'm forever tired of having to repeat, the Dark Side gives power, not inhibits. The Dark Side is what enabled Anakin to defeat Dooku. The Dark Side is what pushed Obi-Wan back the majority of the fight. The Dark Side is what enabled Luke to defeat Vader. Darth Vader's berserker style wasn't a liability, it was a Sith inspired, DarkSide charged form of lightsaber fighting that was relentless and ridiculously powerful. Anakin's arrogance was key, not his fighting style. His mistake wasn't made during the heat of battle against Obi-Wan if people notice, but during a pause and lull. Anakin fought Dooku the exact same way he fought Obi-Wan, even using some of the same moves, ONCE he began using the Darkside. People are cheating and shortchanging the Darkside by constantly using that as an excuse for why and how Obi-Wan beat Anakin. Maul was a berserker. Dooku was a controlled berserker. Sidious was a berserker. Vader was a berserker against both Obi-Wan and Luke on Bespin. EDIT: It never ceases to amaze me. Hayden spent 8 weeks learning that style and choreography to ILLUSTRATE and DEMONSTRATE how POWERFUL he had become using the Darkside. And people percieve it as a weakness. It's insulting to the effort and energy he put into it, when the whole point all along was to show "hey, this guy is powerful here"