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I gotta go with Marvel over DC, and Star Wars over Star Trek. I do love me some Justice League, but, seeing as how the comic that got me hooked was Spider-Man, and my mom was reading Deadpool starting with #1 in '97. I'm Marvel.
Star Wars is my pick of the two because (even though their legends, now) the Universe is so much more than just a few movies. I love how I can see elements of Faith, past leaders, the never ending struggle between good and evil, and have been able to teach aspects of our world history using the struggle between the Empire and the Rebellion. Star Trek speaks of a Utopian hope, yes, and the stories are good, too. But, still, It's Star Wars for me.
When I played, Tabletop wise I loved me some old school D&D, PC/Console: Star Wars: The Old Republic, and Diablo 3.
Care if I ask you the same three questions?