"hahaha your right, but here's my take. luke unlike all of the jedi of the OR used his emotions when he fought. he if you will used both sides of the force together, the raw emotion of the sith, and the came an control of the jedi."

Then, again, it has nothing to do with the numbers of Sith or Jedi, but what they do. You've just made my point. The "numbers" scenario simply doesn't work.

"he discovers that there is no good or bad there is just the force."

Agreed. The "Dark Side" of the Force simply refers to how it is used (or more specifically, the intent of the user.) I've said this for years at TF.n.

"Actually, the Prophecy existed before ANH was a movie."

"please explain."

Easy, the concept of a "prophecy" and a Chosen One (though not necessarily in those terms) existed in the third of four drafts written before ANH was filmed. It was not created solely for the PT.