Thinking super-powered wishes:
The power to manipulate matter, energy, and entropy in any way I want (including breaking the laws of physics). I could prevent my own aging and dying, make money appear out of thin air, etc. I could keep the universe operating forever.
I left out time because I’d be sure to accidently destroy the universe in some type paradox thingy-ma-jig.
If I managed to not destroy everything on accident, I’d eventually get bored, so that’s a problem.
Another super-powered wish possibility:
The ability to make everyone obey me by making them want to obey me. (As in, they are extremely happy to do so.)
I’m sure I’d abuse this one a lot, but I’d also end war (etc) forever. There’d be more good than bad.
Another one:
To make everyone in the world a lot more logical when it comes to beliefs. (Evidence more required for people to form decisions than how it is now.) Obviously, sometimes decisions would need to be made with not enough info/evidence, but I’m mostly talking about people jumping to outrageous beliefs, even with no evidence. (Ex: No more Muslim suicide bombers.)
I think this one is the best one because it seems to carry the least amount of problems. It just means people will make informed decisions whenever possible.