R. Star wrote:
What does the Borg Queen add to the Collective again?
A personality that makes rather obvious emotional mistakes?
Causing all the drones around her to die if she does?
She seems more of a liability to the Borg than anything else. Before her the Borg were a scary Collective entity... after just another generic villain whose panties get in a bunch with the best of them.
You know, they were already contemplating adding the Queen for Best Of Both Worlds, but they decided that, to give the Borg a face and voice, the Borg would assimilate Picard, making them more of a menace.