Doomsday vs the Fantastis Four
Fantastic Four
vs
DoS Doomsday
Scenario: The JLA has been monitoring the asteroid containing the body of DoS Doomsday and discover that it is approaching a tear in space that will send it to an alternate universe. After extensive calculation, it is determined that in 24 hours the monster will arrive in New York City on Marvel Earth. Feeling somewhat responsible the JLA, unable to reach the Avengers, contact their friends the Fantastic Four and give them the heads up. They also agree to give Reed full access to Watchtower's computer during that time period so that they may formulate a strategy.
No BFR, no Franklin or Valerie