I bought DAL a day before earnings. I like their company and they perform solidly. I don't think their ceiling is nearly as high as AAL, but think they'll be a solid stock for some time. Plus you already got their earnings so no surprises now.
I wanted to buy LUV but I'm still thrown off by the Wright Amendment and how that may affect them, so I stayed out. I have no love for UAL at all.
I know this question wasn't directed at me but I'm trying to get this day to pass quicker I'm on pins and needles for earnings.