The things that matter to me:
Get me and my bags to the their destination on-time
Relatively new planes and seats with adequate legroom in Y (and now F too, thanks to the reconfiguration).
Friendly flight crews
Power outlets at every seat and free streaming IFE.
Mileage Plan not revenue based and useful international partners.
Good schedules on the routes I fly.
No changes fees as a Gold.
So far, AS has been meeting my expectations on all my recent flights and I continue to be a loyal AS flyer.