skyjedi2005 said:

Flash forward he uses the EU for source material to make the prequels.

Pretty much the only thing he used as material from the EU was the name of Coruscant. And the pronunciations in Phantom Menace for it are bizarre.

He killed a lot of EU stuff with the prequels. The nature of the clone wars and what happens when a dark side user dies are standouts.

Main thing I hate about the EU is the power creep. Sun crushers and Sith Sorcerers who can create black holes. Vader and Yoda both hinted at the great power of the force, but the greatest feats were performed by people who did lots of little things with big consequences. The force destroyed the Death Star through Luke. It didn't pull it out of orbit.