Rocky vs. Batman
Strictly a boxing match. Boxing rules and all. No other fighting styles (clearly), boxing gloves and all.
Rocky gets a montage before the fight. And also has the "Eye of the Tiger" and "Gonna Fly Now" playing in the background during the fight.
Batman gets...a day of prep.
Rocky has Micky, Paulie, and Apollo at his corner. And of course, Adrian is watching from the stands and tells Rocky to win.
Batman has Robin, Batgirl, and Alfred at his corner. And uh...Catwoman can watch from the stands and tells Bats to win.
You may all think this is a joke, but I'm really curious/serious about this.
My personal opinion is that Rocky will win. Eventually. But hell, this would be the match of the millenium.