@LonelyPerson : Manako can't be best anything as she is nude-faced. She'd at least need a monacle to even be in the running. The only named Best Girl currently is Psykos.
Besides that, there is that girl at the terminal back at HQ, the other girl on the council itself, the waitress at the restaurant... one of the bank girls, and a few background nobodies.
Ultimately... only the ladies with glasses can be best girls.
And obviously best guy is the guy just called Glasses. Mumen Rider is second best guy.