It all depends on variables. As has been stated - flight as glorified levitation is meh as a "power", though it could definitely still be great fun (thinking back to H2G2). Invisibility by itself is quite limited - does it cover clothes as well? Having to be naked and not being able to carry anything makes it almost useless; still making sounds makes it fairly hard to use, etc.
Invisibility just for being a fly on the wall, both in dressing rooms and in social situations (I'm not the only one who wanders what people say about them when they leave the room
); for becoming the best burglar ever, for just hopping flights/trains/busses/cars as you please.
Flight for having fun and sex in the clouds, for tanning/relaxing/smoking a joint on top of the clouds, being able to get away from it all - like scuba diving but better.
If flight's at high speed and practical as a means of transport, it would be great for vacations and such, but it all really depends.
And my power of choice? Gah. Possibly not reading minds (as I suspect other people's minds are as much of a mess and a jumble all the time as mine), but reading/feeling/influencing feelings. Accurately knowing/feeling how another person feels and exactly what you can do to make them feel different is way more powerful than knowing what they think. Even if it's not "you're now happy despite just watching your parents die - poof!" style influence but you just "know" what to say to make people feel better/sympathize/love you/care/be happy - it'd
still be incredibly powerful. Just think - a superpower that would actually help you cheer people around you up when things go badly. Easier than trying to prevent all misfortune from happenign to anyone you care about.