Since there are quite a few PHX postings here, I need to throw one in from the other city, TUS.
My business travel stays fairly consistent, about 1 trip every 3 weeks, 90% of them to DCA, and the balance to BOS or MHT. I usually also have one or two internationals per year, usually in Business to MUC, AMS or MAD. Domestically, I fly almost exclusively AA, and internationally UA (per company agreements).
Leisure travel is usually 2 or 3 trips per year, ironically, almost every time out of PHX due to the fare competition.
AZGUY, what in the world were you doing in TRI? (I lived there for 28 years, and I thought I turned off the light).