Members of all kinds of superhero leagues are heroes of their own companies, and there are few cases where two companies cross each other, so it is impossible to compare the rankings.
They organized many alliances. Here are some famous examples:
The most famous alliance of DC is Justice League, and its main members are Superman, Batman, wonder woman, Green Lantern and so on. The Justice League has undergone three major reorganizations, with great personnel changes. You'd better go to the encyclopedia and see the details for yourself.
Marvel Comics has three main teams: Fantastic Four, The Avengers and X-Men, all of which have experienced personnel changes. Only a few of the most famous movies are shown, and the detailed experience is too complicated. I still suggest you go to the encyclopedia.