It will be an epic battle plucking and screaming.
Brunette snatch blonde pussy hair. But...
If she will have the same grown bush then blonde will win.
If can attack the clitoris and the labia then blonde will win too.
Important is the speed and agility ( Who was the first to grab pussy and starts to jerk harder ). I think the blonde is better at this.
It's also the resistance to the pain and the psyche ( Who will last longer, or who will free her pussy, mistreating their opponent's pussy still). Here the chances are equal.