There have been many post stating the 737 at Southern is a less than good place to hang your hat... I am NOT at Southern so no first hand knowledge... You have all the building blocks to get to a Legacy or other Tier II carrier with a AA Flow as a maybe insurance policy... If you are young under 30 I would recommend you sit tight and apply/update and update at the Carriers of choice and not go to a Less than desirable carrier... Just my 10 Yen worth... Best of luck...
Kampai