Not count the appearences of the characters in overall, but ONLY in Avengers comics.
The comic books counted are: Avengers (vol 1-5), Avengers Annual, West Coast Avengers, New Avengers (vol 1-3), Mighty Avengers, Secret Avengers (vol 1-3), Dark Avengers and Uncanny Avengers. I'm thinking to use Avengers Assemble too, but is not counted here at this time.
Aliases and surnames accepted
This list counts EVERY character: heroes, supporting, villains, cameos...