What If The Allies and The Axis had to unite against Namor?
What If Captain America had been awoken to find that the earth was dominated by the Atlas monsters and there were no other heroes?
What If T'Challa had attended college with Reed and Black Panther had become the FF's archenemy?
What If Johann Schmidt had immigrated to America as a child and eventually became a volunteer for the super soldier program?
What If Peter Parker had been drafted for Vietnam?
What If Charles Xavier and Cain Marko had been friends as children?
What If Bruce Banner's mutation had made him become like The Abomination or Abomination instead?
What If the original X-Men had been made up of Scarlet Witch, Quicksilver, Toad and Mastermind, while the original Brotherhood had been made up of Cyclops, Jean, Iceman, Beast and Angel?
What If Otto Octavius had been a hero from the beginning?