Das Debate Thread!

Welcome to the debate thread!
Essentially, this is a thread, where every Friday, I post a topic to be debated over for the course of a week

First Weeks Topic-
In a Fight, Who Wins, Batman or Superman?

Personally, I gotta give this one to Batman. In The Dark Knight Returns-Part Two, a Batman not even in his prime, is beating Superman with only tools his normally has at his disposal, such as the Batmobile and a downgraded Bat-mech. On top of that, in most versions batman keeps a large supply of Kryptonite in his base, and he has at least a small amount of Kryptonite in his belt at all times.
Thoughts and rebuttles?

Which Batman? Which Superman? Where is the fight? When is the fight? What equipment does Batman have? How much prep time? In character, out of character, or bloodlusted?