The more I think about this the dumber it seems. Superhero movies are a totally different genre than Action films. Even though they have action they're more closely related to sci-fi/fantasy than any other genre.
From what I remember the kind of action films that Stallone did were replaced in the 1990's by Seagal and Van Damme ie martial arts became more important than raw muscle.
And looking at his filmography he had a few decent hits in the 1990s, he also made Stop of my mom will shoot.
And Bruce Willis really isn't on the same level as Stallone. Willis is a good actor with a normal physique who does movies with action, not a musclebound action star.
