So my first thought was, "wouldn't Nikola Tesla have the strongest electricity-type zanpakuto by a lot?"
He'd be all "fry everthing, Coil" and the only one would wouldn't instantly die would be Farraday because he'd be in his cage (a special barrier-type Kido?).
I'm not sure how Mawell would fit in, he'd probably reduce everything to just three statements.