Maybe Maul and Tyranous should have been one character?
Most peope think that Darth Maul looks cool, but he had like two lines and got killed off in Episode I. Count Dooku on the other hand at least had a back story and a personality. Maybe the two should have been one character, with Maul's appearance and Tyranous' manner, who was introduced in Episode I and killed off in Episode III. That would have made his death more significant as well.