Although comic books have been something of a niche hobby throughout their history, the appeal of their characters is undeniable. Most people who have never picked up a comic can rattle off members of the Justice League or the Avengers, likely because their names are more easily digestible than the actual literature.
It's much more enjoyable to watch your favorite characters on the screen, without having to peruse thousands of pages for a similar experience. That's why the shows and movies surrounding these complex and interesting characters have become so popular; they satisfy the need to see them without being dragged down the rabbit-hole of clashing continuity, often questionable quality, and confusing ideas.
Still, the comic books provide something that cannot be given in the cinematic format; they showcase the purest forms of the characters. Of course, many of these roles are as iconic in film as they are on the page, but there is always something lost when literature is adapted for the visual format. They fare best as intended - through ink and paper.
Certain comic books don't simply display the characters as they were intended - they conclusively define them