Science fiction by far. I love movies that explore vast amounts of concepts within the universe and plays around with reality within it. Fantasy can be great too, just haven't fallen in love with them like I thought I would. Maybe I need to watch more. I still haven't seen the LOTR trilogy for example. Now for Superhero movies....bleh. For the most part it is a tired genre thanks to the Disney formula running it sorta dry. I will say I do find interest in movies of the genre that are willing to take risks, so like the R-rated animated films which tend to be great (aside from The Killing Joke, that movie suuuuuucks) and something like the upcoming Batman film which I assume will be R rated. So overall that is a mixed bag for me.