i think it also depends on what kind of invisible is it like, When you go invisible your clothes stay visible so you have to walk around naked exposed to the elements, or is it whatever you are holding is invisible, if that is the case wouldn't the ground turn invisible too, because you are walking on it? I think invisibility, while extremely useful/fun, is too complicated. I would choose flight, and make sure you work out alot so that you don't get the Fat wave going
