Femme Fatale, really cool video involving female fighters.

Oh my god, everyone, you gotta see this video I found.

It's called Femme Fatale. It involves a showdown between Black Rock Shooter, Ryuko, Mami, and Panty Anarchy. Though two of them I really hate, the battle is still epic, and it's awesome to see this sort of crossover fight animated!
(Even though I'd rather it be BRS, Mami, Ruby Rose, and Yoshika Miyafuji).