Airline life is always better living in domicile. Commuting is stressful, takes time and cost money. I'd take that into consideration and look at what airline would match up best with your situation.

If it doesn't make much difference, AA seems the better choice to me right now. It's all about seniority and progression "should" be better there. (but people were saying the same thing back in 99'-00') Good Luck.