At the end of the day, you must choose the airline that works best for you. The industry has drastically changed over the past decade and one has to make rational choices. I've stuck with AA because I'm in PHX, I can redeem Saver awards from time to time, and am generally happy with the current schedules. I've considered changing to DL since my main destinations are SEA and ATL, but honestly the Skypesos situation has kept me from changing. But, today, I'm sticking with AA as my main carrier with WN as a backup for shorter hops.