i gave some thought to this idea. And came to the result, that i am rather happy with my own body. At least i know what to expect from it (though, sometimes it surprises me) and how to handle it (well, almost know)
But if for mere wondering. I`d like the male body... Let`s see what was the name of this asian guy who played in "...Tiger and ... dragon", "Ann and the king"... sclerosis, must be aging
One of my friends said: "i`d like to become a guy, to get my balls kicked (that`s what she said, honest) and then go after girls" As for myself i`d rather omit 1st part and go directly to the 2nd. Ladies, beware!
I wouldn`t mind to experience what is like to be in the body of the wolf, that strong, independend and very enduring animal, which can run hundres of km per day, sleep on the snow, survive without food, hunt the prey and tear its throat (do i sound too slaughterous

)
Or to be a fis or sea mammal to fee what is like to cut through the waters to float in the midst of the ocean
Or bird. Big eagle gliding upon air flows, or small sand martin darting, chasing bugs
☝