Whenever someone asks what superpower I'd like, instead of flight, invisibility or any of the others, I always say... Quantumkinesis.
What is quantumkinesis?
Telekinesis effective all the way down to a subatomic level.
Fun with Physics, anyone? - I get to do all sorts of things that would normally require about two dozen other powers.
And screw tossing cars at you, I'll just reach into your head and move half a millimeter of your spinal cord half a millimeter to the left...
The only way I was able to come up with a character who had that power and make them still somewhat usable as a main character in a story was to stipulate that the guy is limited to only doing what he can wrap his still-normal-human mind around - i.e., he has a list of individual "tricks" that he's taught himself to do, and using his power too much or pushing it too far will endanger his sanity and humanity. (For example, if he ever went nuts and lost his sense of self, he might actually physically discorporate.)
He could go all god-mode if he wanted to, but then he'd either literally asplode or even worse end up ascending to become one of those cosmic-level entities and stop caring about humanity or the planet at all. And he likes this planet - it's where his friends live and where he keeps his stuff.