gpas

As long as you meet the minimum GPA the sororities will not hold it against you if your personality shines during recruitment. The only time it's a big deal is when sororities are on-the-fence and then a poor GPA may be a dealbreaker. Although it depends on what each sorority wants from the new sisters each year--some sororities emphasize academics more and might put more value in academics than other sororities.

i think the sororities use GPA as the first factor for cutting girls? like they set a minimum and then pick the best from the girls who meet it. maybe it varies across the organizations, though.

Some do have a higher GPA requirement than what is needed in order to go through recruitment. You will automatically be dropped if you do not meet this requirement. There are always exceptions, in which case, the chapter will vote on this. (I know this for a fact because I am in a sorority that does this)