If I could have one superpower I’d absolutely go with invisibility, as long as I can control when it turns on and off!
I can agree with invisibility being a practical superpower. I chose flight, and see that a strong argument could be made for either.
I would love to be invisible, soo much fun could be had.
I would be so nosey and just go in people's houses to see what they are arguing about and how they decorated their house.
Invisibility was my second choice!