Phoenix, Arizona, I find outstanding...
Funny, as I found the supervisor there the worst ever airline employee I have ever come across ever in the whole world. And that's a lot of airlines, some which are not very good at all.
Just goes to show that individual experiences should not matter much when judging an airline. Punctuality/reliability/cost being uppermost, not whether somebody smiled or scowled at you once in a blue moon. (Safety is a given)