Think about this if you pick flying you're a dumb ass but other than that I'm picking invisibility because I can easily just like become invisible put a book bag and shit in the alleyway like Spider-Man and shit and then just like going to alleyway and just get dressed and shit
Okay, if we look at this logically, the first one, realistically, you'd get to fly like 20 times maybe. The second one, if you turned invisible, you'll be naked, but people won't see your nakedness. So you could go invisible, do what you need to do, and then go back home. So, second one.