Definitely video games. I was only ever sort of into basketball before college and I wasn't into football at all until college, though I actually enjoy football a lot now and watch my favorite teams play whenever they're on.
Video games, I've enjoyed as a child and still actively enjoy to this day.
Reading this post may induce one or more of the following:
Nausea / Butt-Hurt / Lulz / UM? Syndrome / Angst / Diarrhea