Harryman

Batman Batman's a great strategist and would only fight superman if he knew for definite what the outcome would be. He knows Supermans weakness is kryptonite and would use that to his full advantage. Superman is obviously far more powerful than Batman but he is knowere near as smart or anywhere near as good as a fighter. Once Superman is weakened by kryptonite, for a short time he is pretty much human and Batman would use that as his advantage.

The Joker (Joker) In the book IT was an alien and no one knew what IT's true form is. He turns into what you fear. The joker has a broken mind and doesn't really fear anything to a certain extent. Whatever IT turns into the joker would just see the comical side of it and will probably just shoot and stab IT while laughing to the point IT'S scared