Um....how can Anakin destroy evil? Evil is something that all of man can do to some capacity (as well as aliens to in Star Wars). So unless all of Man is wiped out in the star wars galaxy as well as all the aliens with human level intelligence, evil would cease to exist..in THAT galaxy. That is why i don't mind when the Sith return post ROTJ in the EU. It makes it REALISTIC. I find it dumb to say that when Anakin killed Palpatine, there would be no more evil men, or sith wannabes who would act similar to him. After all if Palpatine became someone who was like evil incarnate....what is stopping it from happening again to another person? This idea that ultimate evil can't exist anymore post ROTJ because of the destruction of the Sith puts a barrier upon what man can do. Its like saying that no one in the future could become like Palpatine...even though that is ridiculous. Don't evil men, just like the rest of mankind, have free will to? I just think it is stupid.