io9's March Madness: Science Fiction vs. Fantasy!

Are you ready for another edition of io9's March Madness? In previous years, we've crowned the best movie, the worst movie, and the best TV show. But this year, we're going bigger. The most famous series in science fiction and fantasy will battle it out, to see which genre reigns supreme! Check out our full bracket, and vote right now on our four opening-round battles!