#1. I prefer bright colors for superheroes.
#2. That said, I thought what the filmmakers did with X-Men worked just fine, because the X-films weren't really traditional four-color comics stories.
#3. The bright red outfits in The Incredibles were perfect for those characters and that story. Reconstruction after Deconstruction and all that.
#4. Christopher Reeves looked amazing as Superman in the bright blue and red. And so did Dean Cain. I don't know that the same look would have worked as well for Superman Returns, being the darker, edgier postmodern thing that it attempted to be.
#5. And above all, I am the first to realize that nobody asked me.