The attitudes of the UAL people I dealt with except for the one agent in Chicago were totally arrogant. They noted twice that, after all, I did fly in economy class.
I try to Fly KAL or Nippon but sometimes that is not possible. Those companies treat passengers like they eagerly seek their business again.
I was a little bit prepared for UAL- I brought my survival rations. In Việt Nam the fare served up by UAL for dinner would be called Train Food. The trains are about the only regular source of unpleasant victuals in the country.
P.S. on one of those trips I had to abort because my passport "disappeared" in the TSA screening.
My family and I fly Southwest fairly frequently, and we’ve never had any type of problem with rudeness, involuntary bumping, lost luggage, etc. SWA even lets you have two free checked bags per person. I know a lot of folks don’t like SWA because they don’t assign seating and don’t have some of the amenities that other airlines have, but we’ve never found that to be a problem.