You've hinted that the Legacies are your goal. Seeing how you're within spitting distance of being considered competitive, if I were you I'd simply take the first offer given.
You're not making ExpressJet or AE a career, you're only in it long enough to get picked up by AA or UAL. So really, it doesn't matter which route you take.
At this point in your career you're only looking to maintain currency and keep adding the hours; you have the turbine PIC to satisfy any legacy.
Take the first offer and don't look back.