I am replying to the statement made by a mother about her daughter's house calling her hometown to check out her reputation. I don't know about other campuses but on mine it was considered a rush infraction (illegal) to discuss potential members with those outside of your sorority. So you really should not worry about that aspect of it. College is a new beginning a in some ways a fresh start for many peeple. My best advice for you is to go where you feel the most comfortable and ask a lot of questions about philanthropy, community service, activities... It would also be a good idea to tell the jmembers that you are interested in holding an office. They are always looking for new leaders.
