I try to book SWA 737-800 series anytime I can. It is a big improvement over their 737-700 series which is better than most other airlines to begin with. The 800 series has waterfall seats (better for circulation), more up front leg room, and a fuselage that is roomier. Yes I Know an airline can configure any of the Boeing's a number of ways but the Airbus series is so cramped I avoid the airline that flies them unless it is the only choice.