do any of the srat's are the most selective

Sdt and Aephi are the most selective they pick their pcs months in advance. They have the littles planned out even before recruitment and usually only take freshman.
Phi mu is very selective bc of GPA. This srat only take girls with the highest grades so unless you have a 3.5 or higher you probably wont get a bid.
Deeph doesnt seem as selective they definitely take fun and attractive girls and most girls usually put them first so they get who they want.
Phi Sig and KKG have always taken girls who didnt get in the other sororities up until this year. Both had decent pcs who seemed to actually want them. They do have different vibes from other srats and dont seem as selective