rush help, transfer student, 20.

I went to wku fall semester my freshman year (2013) and transfered to a few other schools to play sports, however I'm coming back to wku this fall and I am dying to rush. I am 20 and will be 21 in september, however I am nervous about being accepted into a sorority. I am behind in school because of changing my major. I am going for nursing, and I will have 5 semesters at wku if everything goes as planned.. What do y'all think? What are some of the sororities I should want to rush?? Also, my college GPA is only a 3.0... what would this affect?