John Williams' Superman: The Movie soundtrack is certainly one of the most rousing and perfectly suited to its subject matter. Stirring, awe-inspiring (I'd forgotten before how much "The Planet Krypton" - my favourite track - owes to Strauss's "Also Sprach Zarathustra"), romantic, uplifting, ominous, humorous (darn those stupid Luthor/Otis moments, which Williams can't be held responsible for), epic. In a word: definitive.
Ken Thorne's reuse of the themes for Superman II was aenemic in comparison and John Ottman's Superman Returns only reinforced why Williams rules the roost when it comes to grandeur. In short: everything Ottman lifted from the original sounded great, everything thereafter paled.
The 2CD reissue of the classic original includes a number of previously unheard tracks, plus alternative takes and a concert version of the classic main theme.
Incidentally, this guy knows what's what.