Over at Rankopedia’s list of the best sci-fi movies, it’s The Empire Strikes Back in the top spot at the moment, with The Matrix and Serenity in second and third. (io9 was clearly a motivator earlier this afternoon when they pointed out The Matrix was #1; it’s dropped a spot since.) Other placers: A New Hope is #4, Return of the Jedi at #11 and Revenge of the Sith at #22. As far as lists go it’s kinda wacky, but that’s the internet for you. It’s not set in stone: anyone can register and shake things up a bit, so by the time you read this entry, who knows?