Yes I agree about southwest there. No only are they a model low cost airline but also to the bigger carriers as well. I was on a southwest flight to LAX in a 737 with nice comfortable leather seats, plenty of leg room, great refreshments and great customer service, only to jump into dirty stained rag covered (what I thought was a) plank with my knees in my ears 13 hours to AK on a Qantas jumbo !
Not that I am bagging qantas at all, I just think that If southwest can get you somewhere comfortably as well as cheaply then the bigger carriers should be able to do a similar job.
And by bigger carriers I mean the non low cost ones..... I think