Here's the finished Superman design. I'm glad to see, from the comments, that people pretty well support this choice. My thinking was that, Chabon's Secret Skin theory aside, the big problem with Superman's costume is the whole body-hugginess of it all. If I had superpowers, I wouldn't want to dress like that. And I'd rather not be rescued by someone dressed like that, either. I mean, of course, I'd like to be rescued, but given a choice of heroes, I'd prefer the one that leaves a little something to the imagination.
Partly, this comes from the sense of real-world aesthetics that puts me in worsted wool slacks more often than painted-on blue jeans. But another undeniable aspect is that I am now older than Superman is traditionally portrayed. As I said over on the Rooftop, it's very hard to realize that one can no longer grow up to be the Man of Tomorrow. So, I tried to come up with a costume that would allow a young man to run around being the pinnacle of all human hopes and dreams without making bitter old codgers like me feel worthless in comparison.
Weird, then, that the resulting costume looks so clerical. By weird, of course, I mean perfectly logical.
And from there, I couldn't resist drawing the other members of the Superman Family in costumes derived from the cassocked Kal-El. Pictured are: Bizarro, Power Girl, Supergirl, Superboy, Streaky the Supercat, Krypto, and, of course, Zibarro!
Not pictured are Superman's Super-Robots, although I have some sketches I should get around to scanning.