3. Darth Maul Should Have Survived The Phantom Menace
One of the most common criticisms of the Phantom Menace is that it killed off its most interesting character after only a few minutes of screentime. While I do think Darth Maul doesn't really have the personality to be developed more as a character, keeping him around for a few extra movies would add a layer to Obi-Wan Kenobi, as he could spend a good deal of the sequels searching for him. Even though it probably wouldn't work as well on screen as it does in my head, I think a duel in Episode III between Count Dooku and Darth Maul on one side and Obi-Wan and Anakin on the other would have been awesome.