I forget who posted it and I'm too lazy to read back, but I agree that the force was already unblanced when we meet anakin...infacy, I think it's been unblanced since the Exar Kun days. Kun was the last great sith warrior and when he was "killed" the light Jedi kinda took over. Good is good and all, but without the evil to counter it it all went helter skelter. Anakin was born with the intent to make things equal. Not only does he wipe out the Jedi, he also takes out the last of the sith. Luke is not the chosen one...in the same sence. What Luke does is he creates a new Order that has a bit more of a duality to it. I think that The force is still kinda working through him, being that he is anakin's son and all. Luke's Jedi are not as strictly Light as the OR ones. And when his do become strongly lioght, you have men like Kyp Durron who come along and counter. Luke's jedi have a strong turning rate, but that's necassary to keep things balanced.