I signed up for Scribophile last year and have been loving it ever since. Everyone there is smart and helpful, I've gotten great feedback on my novel, and it's just about ready for publication! The owners are always improving the site and making sure it runs smoothly. Scribophile is one of the best communities I've ever been a part of.
Not a big fan of Southwest. Sometimes I have to fly them for business and the seats are always really uncomfortable for me for some reason. The staff is friendly though, but that doesn't matter if your back is always hurting!