College by far. March Madness is (to me) the most exciting event in all of sports, and I'm a baseball guy. But besides that, I've been turned off of the NBA ever since the strike (lockout?). When Kenny Anderson whined about how he needed some money to pay the insurance on his cars, and he made $10M a year, that was about it for me.
Don't get me wrong, there are still a couple teams I find entertaining to watch (Suns, Mavs, and Pistons), but I don't go out of my way to watch the NBA at all. I'll watch a college game if there's nothing else on, but if my choice is the NBA or bed, I choose bed.