Which brings me to my thwarted campaign ambitions- Superhero RPG's. It doesn't matter which one, be it the old FASERIP Marvel Superheroes, Guardians, TORG, GURPS Supers, Aberrant, TRISTAT, BESM, or Champions- any time I sit down the run a superhero game, it falls flat. The players make characters, they're all very creative, and completely mismatched in power level. I try to run a few scenarios, and either one character is overpowered and can deal with just about any threat single handedly, or one character is completely worthless due to no real fault of their own.
Because it turns out, most superhero characters in comics have their own "niche" and there are few threats that everyone can tackle together. Usually what I end up doing is having side objectives, so the team splits up to handle different things, leaving one group twiddling their thumbs while I resolve what the other group is doing (kind of like Shadowrun's "Decker problem").
It's very disheartening, because I have a love for the genre.