the truth

I agree with this most of this. There's still a huge separation between AGD and the mid tier sororities though. Improvement for them basically means that they're best buddies with phi tau lol. Also I wouldn't say gamma phi has improved more than anyone else. They're still lower mid, they just get a bad rep on GR for some reason. KD has fallen slightly as well. When I rushed, they were considered one of the top sororities by a lot of the freshman but now they're basically upper mid. I think DG has improved as well, just not as much as AGD. You also left out AXO and Pi Phi. I'd say AXO has risen slightly and Pi Phi has stayed about the same. That being said, here's how I'd change it.
Improving:
AGD, AXO, DG, SK, Zeta
Stayed the same:
Pi Phi, Gamma Phi, AOPi, Kappa, Theta, ADPi, SDT
Falling:
KD, Chi O, DZ, Tri Delt, Phi Mu (only slightly)
Too early to tell:
DPhiE