final sorority ranks

something is wrong on every single tier :/ you must not go here??

Nope, looks more like this:

KD/DDD
DG/Chi-O
Phi Mu/Kappa
Pi Phi/AOPi
ADPi
Alpha Phi/Theta

AND there's not a big difference in resumes or quality between any of the sorority. The top tiers just tend to be more Ole Miss connected. The lower tiers are OOS.

In addition:

There's not a significant difference between KD and DDD as far as the tier goes.
DG has moved up and Chi-O has moved down a little. However, both are great sororities. Chi-O just tends to recruit from a very specific demographic, although there are plenty in that demographic so their numbers are excellent.
Phi Mu has moved slightly up, not that Kappa has moved down, but still putting Phi-Mu in the lead.
Actually think AOPi has moved ahead of Pi Phi, but at least on same level, both attractive to well resumed OOS girls and both are really good sororities.
ADPi attracts some great OOS students, they have seem to struggle a little in leadership, but that's not unusual for a newer sorority.
Alpha Phi and Theta definitely attract different girls. Theta is labeled the bottom, but they seem to attract some nice well resumed OOS students, I just think they seem to get the quieter, more reserved students. Alpha Phi tends to go for a type, which may or may not be successful in the long run.

KD/DDD

Chio

Phi Mu/Kappa
DG
Pi Phi
Aoii/Aphi
ADPi
Theta