I don't care to read minds, it would drive me crazy. I hate being passed up, so invisibility would suck. No, I don't care to be an animal. Heal a non-fatal wound? A non fatal wound would still heal on it's own, so I don't quite get that one. Grey is cool, but it would get boring. Blue would be the second button I'd press if I had the choice.
Green, simply because it combines a lot of them. Could turn into a bird for flight, some quadruped animal to run a lot faster, fish to breath underwater, squirrel or smth to climb giant trees. etc. All while blending in with regular wildlife for discreet "invisibility"
This could go even farther depending on the extent of the power, since human are technically animals, could we shapeshift into any human ala mystique. (maybe even insect. Being an ant is pretty 'invisible')
I'd love flying around on my own at night and just seeing different places. The ability to be invisible would be pretty cool too - there are so many things you could do.
Definitely green, you can fly as a bird, you can be, almost, invisible, and you can run pretty fast, not as the speed of sound, but still enough, depends which animal you choose. So you almost have 4 in 1.
tbh i would choose green, if you wanted to perv you could just be a fly on a wall
and even shapeshift into other people. you could be the crush of your crush
