I was hired by both AA and UA. I agonized over the decision for several months...lost lots of sleep! I finally decided to go with whichever one got me into class first, which ended up being United. I was already done with IOE by the time AA called me for a class. Though I had just barely hit the line at that point, all of my experiences at United had been really positive and it felt like a good fit for me. I felt no compelling reason to leave for AA, and it was actually easier than I thought it would be to turn down the AA class. I think things worked out the way they were supposed to.

Like others have said over and over again, I'll know in 30 years whether I made the right choice!