According to ChatGPT…

Here’s what ChatGPT has to say! (I think it tracks)

Most selective Baylor sororities (commonly considered)

These chapters are typically described as the hardest to receive bids from:

1. Kappa Kappa Gamma (KKG)
2. Pi Beta Phi (Pi Phi)
3. Chi Omega (Chi O)
4. Delta Delta Delta (Tri Delta)

Recruitment discussions and advising sources consistently note these houses as the most competitive overall because they attract large numbers of applicants relative to available bid spots.

Often just behind the top group (still selective)

These are also considered competitive in many years, though sometimes slightly less selective depending on recruitment cycles:

5. Zeta Tau Alpha (ZTA)
6. Kappa Alpha Theta (Theta)

Some recruitment commentary also notes that Theta, ZTA, and Tri Delta can make large early cuts due to GPA or membership standards, which can increase perceived selectivity.