I think that Anakin does bring about balance to the force. He starts out as a Jedi, Becomes Vader and ultimately destroy's the Emperor who was bringing the force out of balance.
I think Luke was the catalyst that made it happen though.
Yes, that is it! It's simple, I don't know why some people have a hard time understanding this.
Heh, it's kind of the whole point of the film-redemption. I mean some DIE-HARD fans don't even get this....sheesh.
Always nice to act that you know it all, and others don't, innit?
All I can say is, big loads of BS!
All that we now think happens in the OT, in light of things that happen in the PT, is complete and utter crap.
Luke is not a catalyst for Vader to fullfill the prophecy in ROTJ, simply because there is no prohecy in the OT.
In the OT, Luke is the one that is being trained to become the new Jedi, to become the one to challenge Vader, to stop Vader.
In TESB, Yoda and Obi-Wan don't want Luke to go of and save his friends, because he isn't ready to kill Vader, not defeat him, but actually KILL Vader. Where's your prophecy there?
ROTJ wasn't about a true return of the Jedi order, it was about Luke becoming a Jedi, and thusly, be the first new Jedi.
Vader didn't fulfill any prophecy when he dropped the Emperor down the shaft, he wrenched himself free from the Dark Side.
There was nothing about a prophecy in the OT, which is why the OT is so much simpler. It was simply the good guys versus the bad guys. Luke needed to confront Vader, to stop him, to finish him off.
When Luke said he couldn't kill his own father, Obi-Wan thought all hope for a victory over the Empire was lost. Little did he know Vader would kill the Emperor.
But the PT has introduced lots of things that simply don't work with the OT. Be it concepts, be it plotpoints (ergo plotholes) but the 2 stories don't interconnect.