Talk:Batman Beyond VS Spider-Man 2099/@comment-33890388-20171121235157/@comment-33890388-20171122003716

and some honorable mentions:

Goku VS Kenshiro (Dragon Ball VS Fist of the North Star)

Joseph Joestar VS Edward Elric (JoJo's Bizarre Adventure VS FullMetal Alchemist)

Kenshin VS Gintoki (Rurouni Kenshin VS Gintama)

Samurai Jack VS Afro Samurai

Harry Potter VS Percy Jackson