Bats wins.
Batman had to fight The Flash in the semis. The Flash is one of the most broken OP superheroes in history. Batman still wins.
This can only mean one thing: Batman payed off the Flash to forfeit the match. Batman will do the same to Supes, so Batman wins. Ever since he was little, Superman has always wanted a Lamborghini Aventador but his job isn't paying him enough money due to the bad economy. Supes will give in to Batman's wallet and take the money so he can fulfill his childhood dream.
Superman might be near invincible, but even he can't resist cold hard cash. Bruce Wayne bitches. Bruce Wayne....