CAL definitely. SWA pilots work too hard. Money is not everything. At CAL you will have a much greater variety of flying to choose from. A career is a long time. 5 or 6 legs is not fun after doing it for 20 years.
Also remember one thing. Never buy the hottest stock. What I mean is, SW is the top right now. I think this may be the high water mark for them. Delta and United were the best 3 years ago. CAL is right there in the middle or better. They are well positioned.