Flight, but only because you included 'superman-status'. Usually these questions don't address the fact that just being able to fly is probably more trouble than it's worth if you still have the usual human frailties. You couldn't go too fast or a birdstrike would kill you, limited altitude, and landing safely could be a problem. Plus our senses just aren't designed for the extremes of flight so we'd probably be disoriented all the time. But if you're already built to handle all that then flight would be awesome.
But if I could fly I'd probably start to act more like a bird than a person anyway. I'd sleep in trees and towers and get food by swooping down and snatching from outdoor dining places and stuff.