Comic Vine Battle Comics: Which Comics Sell the Most?

A company produces a series of comic books for EVERY SINGLE BATTLE EVER SUBMITTED on Comic Vine. Which sells the most copies?

Each series has at least 3 comic books, and a series can go up to 300 comics.

Batman.

Either Spider-Man vs Batman or Superman vs Thor

@princearagorn1: Versus who? This isn't to decide who has the most comic sales, but to decide which matchup/battle could become the most popular via a comic book series. For example there can be 100 Batman VS Superman threads on this forum (there's probably more. A lot more) and then you know have all those battles compiled as a series with all the different rules and scenarios.

Superman vs. Goku

@transformers1024: Jesus christ. We'll need more than 300 books for this shit.

@dragonenton: Well I guess this makes sense:

Arguably the most argued battle.

Probably superman vs Thor, or batman vs Captain America