https://www.google.com/amp/s/comicbook.com/gaming/amp/2018/08/28/pokemon-highest-grossing-media-franchise/
"Pokemon's place at the top is helped by the list makers considering Spider-Man, the X-Men, the Hulk, and the Marvel Cinematic Universe different "franchises" instead of part of the overall Marvel brand. If all of the Marvel properties on the list were combined under one entity, they'd beat the Pokemon franchise by about $2 billion."
So technically Marvel is bigger 😉
Also I was under the impression this was strictly box office