Batman is my favorite, too, but I would rather spend a day with Superman. His villains are a lot less scary and Batman is too judging.
For the others: Power ring. I think I’d be able to use that well straight out of the box, whereas with the speed powers it could take a lot of practice not to get people killed (anybody see The Boys?)
I would rather be able to go through space. I could always learn to scuba dive if I really wanted.
I’ll go with the utility belt if it’s coming pre-loaded. I think I would overuse the lasso, and the truth can be overrated.
I’ll go with Kryptonian.
I would rather eat the chocos. Hanging out with J’onn is less likely to get me killed. And he’d have good stories, too.
I would much rather live with the Mad Hatter. He’s more likely to mind control me into robbing a bank, but the Joker at some point is guaranteed to kill me. Or take my face or something fun like that.
I would rather commit a crime in Metropolis since there would be less broken bones. Then, again, I would probably have a better chance of getting away with it in Gotham, depending on what the crime was.