Superman's powers are not really that unique...
IMO, save for heat vision, x-ray vision and microscopic vision, there should be a number of heroes and villains who could, at best, emulate most of Superman's powers. Breath powers? Muscular and respiratory systems should be similar enough in other Superman-level heroes and villains to mimic "super breath" and "ice breath". "Super speed" and "super strength" are the obvious, as well as "super endurance", "super stamina" and "flight". While only the Martian Manhunter can do everything that Superman can do, I say Captain Marvel and Wonder Woman can do 80-90 percent of what Superman can do as well. Just a thought.