is there a document compiling how good which girl is at which position? finding which one is useful for mindbreaking is really a chore :(
I don't have a comprehensive list, but as a general rule...
Library/Police Station/Fire Station: Further to the left the better for normal characters, further to the right the better for summons.
Auditorium/Mall: Low range are "most" characters, mid range are characters with performance skills or who put effort into being attractive, high range are characters with supernatural attractiveness.
Barn: Effectiveness is proportionate to breast size.