The big problem with Secret Origin is that it’s (oh Lord do I hate this word but I can’t think of a better one) soulless. It’s basically a continuity list, “this happened and then this happened, and then this happened”. But none of it really seems to mean anything or connect to each other. American Alien did the whole “snippets of Clark’s life that show how he became Superman” far better. Birthright had a much more interesting take on Lex and Clark’s relationship. Morrison’s Action run had a better emotional arc of Clark winning over the public despite fearmongering and distrust. About all SO has over the other origins is that it has the Legion which I 100% approve of, and it has a fantastic idea for Metallo which unfortunately has never reached its full potential, namely that he’s the military’s Anti-Superman. That’s a fantastic idea, one that if I was ever blessed with the opportunity to write a Metallo story I’d go all in on. I think making Metallo more of a parallel to Clark in terms of his background would really help raise his profile, but unfortunately no one has really done anything with Corbyn.