I'm basing my decision on whether or not I roll Chisa solely on her moveset.
Her generic JK schoolgirl design doesn't interest me.
I'm not a metaslave, so I don't give a flying fuck if she's top or bottom tier.
So all that's left is her moveset.
I hope her moveset is mainly her chainsaw and whip, with very little in the way of actual sword swings.
https://www.youtube.com/watch?v=x5j966ysWgQ

Also, who gives a fuck if she uses spats or g-strings or whatever. Imagine basing your decision to roll her on something you won't be seeing outside of her idle animations and you have your camera specifically focused on her pussy.