The whole existentialism theory flies out the window here. As someone quoted before, something about there not being choice where the force is involced. So in actuality Anakin falling to the dark side, was a choice, but, a choice that was pre-determined?
That would be cool - perhaps you would have to raind a Teras Kasi planet. I'm having bad memories from the game called "Star Wars: Masters of Teras Kasi".