Not a single thought in my mind of jumping ship, because for me there's nothing better out there.

My travels are primarily international in scope, so the United/Continental merger allows me to travel more or less anywhere in the world I want to visit on a single airline, which has some advantages even in the era of multilateral immunized alliances (and when partners are considered, well, Star Alliance beats the crap out of anyone else). And for those occasions where I do travel domestically, it's either a) to hub cities of the combined network, or b) to destinations where UACO offers competitive levels of service and pricing.

Delta would be the only possible alternative, and I do not like Atlanta, nor do I care for the ongoing systemic cooperation issues with DL and AF/KLM. So UACO it is.