If you look into the back story of Mace Windu he was supposedly adept at at a fighting style/state of mind
known as Vaapad that would allow him to channel his anger into the fight. I don't think he really 'fell' to the
darkside like a lot of people say he did during the fight with Sidious, but more to the point I believe Vaapad
gave him a definite edge over other Jedi, but it probably did come with draw backs. I think if the rest of the
Jedi order wasn't completely opposed to the idea of the darkside at that point they wouldn't have been so
blind to the sith's plot. When the order was first created there were practitioners of both sides who fought for
peace. Using the darkside just became taboo after the council saw so many darksiders completely loose them
-selves to it...Because practitioners of the darkside embrace emotions like fear, and anger, and passion to drive
their battles, and the wave of power that gives them is far harder to control then the 'light side'.