Red vs Green vs Blue vs Black
The Beyonder chooses Rulk, Dr Doom, Superman and Batman to fight it out on an alternate earth. He lets them have 45 minutes of prep before he grabs them from their respective universes and teleports them into NY a mile apart from each other, at street level. All are bloodlusted and does not care about civilian casulties.
Oh and the earth is surrounded by an invisible unbreakable forcefield 100 km out.
Who will rise and who will fall?