I know people want to pretend that their daughters don’t care about rankings, but believe me, they do. Half the girls going through recruitment drop because they’re left with houses they don’t want. To answer the original question, these are the unbiased rankings from 2013 - now. Apparently, some of the other posters have agendas with their ranks.
PC 2013 (JUST BY PC)
DDD KKG
Theta
A Phi
Pi Phi
DG
GPhi Zeta KD DZ
Chi O Alpha Chi
PC '14
KKG DDD A Phi
Theta
DG Pi Phi
G Phi
Zeta
KD
Chi O
DZ
Alpha Chi
PC '15
Theta DDD KKG
A phi DG Pi Phi
Zeta
GPhi DZ Chi O
KD Alpha Chi
PC’16
Theta KKG
DG A Phi Pi Phi
DDD
Zeta
G Phi
DZ Chi O
KD
Alpha Chi