My only beef with the OT is that Luke/Leia should have never been siblings. That is when Lucas let the 'I am your father' twist go to his head and thought he could outsmart the fans with some new twist every movie after that. The Luke/Leia sibling plot point made the universe too small, and sadly 'the other' could have played a huge part in the upcoming ST.

Another plot hole is when Obiwan tells Luke his father's name in ROTJ: Anakin Skywalker. Really? So when Luke was hidden from The Emperor and his father, they had him keep the same last name as his father???? That is why Darth Vader should have been called Anakin Starkiller (or something like that) just to show that Obiwan/Uncle Owen did everything in their power to hide Luke from him. And don't get me started on the Prequels, where we now learn Anakin was also born on Tatooine, so they decide hide Luke there? And Owen owned C3PO for 10 years yet doesn't remember him in Episode IV?