These images, found on Reddit, were generated by blending the faces of all the people who have portrayed Batman, Superman, and Wonder Woman in movies or on TV. Their platonic ideal forms, if you will.
Basically: Bruce Wayne has an oval face, and Clark Kent has a more pronounced jawline. Let’s look at the comic book material to see if this stands up:
Well, back then, they would only just sort of change the way the two men combed their hair.