I guess it all depends on what you're looking for.
Personally, I'd MUCH rather pay the lower fare (we find $100 RT fares regularly through SWA from CT to FL), and get to my destination ON TIME than have a crappy frozen meal served and watch a movie that I've already seen on HBO. I hate paying extra for frills.
The "no assigned seating" doesn't bother us at all. We check in early and are usually in the first group to be boarded. Even when we're in the second group we manage to find pretty good seats together.
As far as CLASS is concerned--huh? What airline is classy? I guess it depends on your definition of class. Excellent customer service, on-time flights, happy employees, sitting wherever I want on the plane (usually third row--as close to first class as I'm willing to pay for!)--it all adds up to class for me!
Ohhhh...Just saw the correction in the above post! First Class is a different story. I'll still stick with SWA, though. I can sit in first class area seating for a fraction of the cost!