Dr. Manhatten.
Doesn't control things, controls fucking atoms.
Which basically means he can do anything.
Like, if I were him, I could turn an entire car into snow in an instant, or make a clotch flag solid gold.
If I were him, and in a war, I'd just literally turn all the explosives, bullets, guns, etc, into pink bubbles shaped like peace symbols. Because I damn well could.
I'd walk into the Pentagon, and they'd be all like "Whoa, not allowed through here!", and I'd be all "Mate, I don't give a fuck." as I turn his Secret Service badge into cotton wool, and his gun into a five pence coin.
I'd also be able to do real, proper Superhero shit. More than stopping muggings/bank robberies, more like halting Tsunamis, quelling Earthquakes and calming Hurricanes. I'd maybe change the amount of Oxygen there is on Mars, make it habitable for humans, then build em a giant spaceship to get up there, and take it there myself because I could bloody teleport it.
I might turn an entire planet into purple chocolate. Just for shits and giggles.
Maybe make some cocoa-bean-based life on it.