The God of the Israelites was simple and patriarchal, for a simple and patriarchal society, and modern superheroes have better morals. If Superman were real, I would rather worship him, because of his consistency and good intentions:
-Superman never kills
-Superman always defends the weak
-Superman reflects, forgives, feels remorse, and has good intentions
-Superman is responsible with his power. He usually does not “play God” or flaunt his powers if it would harm others.
-Superman actively improves the world, rather than improving it for one tribe.
-Superman doesn’t hide his existence from anyone, and by revealing himself gave the entire Earth hope.