Are you talking about in real life or the Marvel universe? I'm talking about the Marvel universe. Yes, he is the most known superhero Marvel has but that is in our world. If we all lived in the Marvel universe right now, that wouldn't be the case. People like Iron Man, Cap, Thor, and the Fantastic Four are all more well known and are generally more liked than Spider-Man in the Marvel universe (once again, the Marvel universe; not the real world). On the other hand, this doesn't apply to Batman and Superman. They're the top big shots and most well known superheroes in both the DC universe and here in the real world. Agreed. I'm not against the idea of Spider-Man coming in but the importance of characters like Ms. Marvel, Black Panther, Vision, Ant-Man, and Wasp come first because they're iconic Avengers characters. However, if Marvel has already made the decision to bring in Spider-Man at one point if they can, I believe what I said before would apply.