I've flown with lots of airlines, and anyone can have bad days. I've had fewer of those on America West than other airlines, and when bad days have happened I've found they went above and beyond to try and make it better when given the opportunity to. For flying around the west coast they've got it going on, and the fact they offer nonstop service to so many locations keeps me flying them.
I may be a bit biased though. I know a certain DISer flight attendant, and his travel benefits keep he and my Mom visiting us regularly!!