Spider-Man vs Superman (tricked)
Spider-man is mad at Superman because he thinks that Superman raped Mary Jane. Superman is mad at Spider-man because he thinks that Spider-man raped Lois Lane. Little do they know, Alex DeLarge was the one who raped both of them. How long (how many comic issues) would it take for them to fight about it, figure out that it wasn't them, and join together to stop Alex's ultraviolence?