All I have to say is, I'm racking up a free Southwest ticket after I finish four or so more stays in a couple weeks. (This is just another way of agreeing with folks who recommend focusing on stays as a means to achieving the quarterly promo benefits...)

(Q3 promo is double airline miles, which means 1 RR per stay on WN right now. If you use your WN Visa, you get doubled spend credit at Hilton, which is a Preferred Partner...this means more RR)