Initially, I flew BA because it was the only airline that flew direct to PHX and aside from a brief period in the early noughties when Scheißtansa did albeit from FRA, they still are (the lack of competition at PHX to Europe still annoys me). Shortly thereafter, I got locked into the BAEC. These days the travel is to FRA and BA makes sense, particularly now as I live outside of London and LCY is closer than LHR.
I am loyal up to a point. I'm very happy to use another OW airline and AA has definitely upped its game over the past couple of years.
enjoyed your little personal comments this time ) Interesting that you are a nervous flyer, since you travel so much. Myself, I neve was one, but I must confess a car accident and a terrorist attack at close proximity has made me more jittery the past few years... of anything including flying. That's life i suppose.