I use both depending on destination. Every other year we fly back to MN to visit family & go hunt birds for 3-4 days in SD.
All though Delta has the worst pet record & charges just as much for the dog round trip as me I have to take them because they are the only game in town with a non-stop to MSP. I refuse to make the dog sit any longer with transfers in SEA it only adds to possibility of delays & things going wrong. Knock on wood I haven't had any issues with our guns going eitherway yet to date. The only positive thing about Delta is the inflight TV entertainment is free & on the way back for a brief while you can watch football or sports center, helps break up the long duration of the flight.
