Fantastic thread idea!
Great selections have already been tossed out there, I am very happy to see Blake Neely's Supergirl theme getting some love. When it comes to Superman, I feel the late but phenomenal Shirley Walker does not get enough love. Her theme for Superman perfectly captured the character.
I agree, I love this theme. I just wanted to focus on films with my first post. Superman is very lucky when it comes to musical scores, IMO. I also really like the Wonder Woman TV show theme from the 70s.