Madeline Barnicle doesn't watch enough scifi movies for her to feel like she should really nominate a contestant for our poll, but she did want to weigh in with her thoughts about why Star Wars Episode III: Revenge of the Sith is the best of the Star Wars movies.
My shortlist of contenders for favorite science fiction movies is rather short for various reasons, such as my general preference for books over movies. With this caveat, announcing that Revenge of the Sith my favorite movie of the Star Wars series, never mind science fiction overall might raise some eyebrows. I'm not quite sure how much of this unusual preference is due to the circumstances under which I saw Episode III, and how much is due to Episode IV being a victim of its own success.
Revenge of the Sith was the only Star Wars film I saw in a movie theater. I was blown away by Obi-Wan's dramatic escape from Order 66 on the back of a huge dinosaur...thing, and appreciated the final musical segue. Although I had already seen some of the other films on the small screen, perhaps the scope of the big screen gave "Revenge" first place on any subsequent list I could make of the different episodes.