Is Darkness the best girl?
She's the worst girl of the main trio, which still makes her a good 7/10 in my book. Including the supporting cast, she's better than Eris and Iris who are boring.
Why? When you can have a wealthy busty girl with at least average INT, who loves when you bully her.
Darkness is the best girl closely followed by Aqua.
Pedos and waifufags are doting over megumeme because that is what they are doing with every anime out there featuring cute one dimensional girls.
Darkness and Aqua too have their own shallowness but they are still better than megumin.