For me that has always been my favourite, I'm a big Richard Pryor fan so the criticisms leveled at comic tone of the movie never bothered me one whit.
"You know a wise man once said, I think it was Atilla the Hun, "It is not enough that I succeed, everyone else must fail.""
When I saw Superman III in 1983 that Braniacesque supercomputer that Gus creates had me freaked when it turned evil.
Then of course we have the incredibly underappreciated Gavin O’Herlihy as Brad, picking up on the football jock and Lana romance plot left dangling from Superman: The Movie.
Office Space and Superman III make for a good double feature.