When Superman goes back to visit his home planet (using his ability to travel through time, I guess), is he:
- an exceptionally strong and athletic Kryptonian?
- just an average Kryptonian male?
- a weakling on account of spending a lifetime in the comparative microgravity of Earth?
A possibly related question: why is Superman so muscular? What kind of weights does he lift to stay in shape?
The answers to this question are all about Superman's superpowers on Earth compared with other visitors from Krypton; I'm asking about Kal El without his superpowers.
Clarification: I'm asking about the "classic" Superman, say late Golden to early Silver Age, roughly 1945-1960. (Yes, I know the concept evolved during those years.) I'm not sure what that would be in terms of "numbered Earths", those came along after my time. I'm pretty sure the Kryptonians of that era had no superpowers in their native milieu, nor would Kal El if he were deported in space-time to his native world.