I think this is one of the best examples of how Southwest pilots would be harmed by a relative seniority or even a DOH integration. Objective fact #1 - AirTran's hiring requirements have always been lower than Southwest's. Objective fact #2 - AirTran's pilot group is, on average, approximately 5 yrs. younger than Southwest's pilot group, due mostly to the lower mins. Objective Result - the average AirTran guy that is put in the list senior to a Southwest guy will be younger, and therefore remain senior to that Southwest guy for the remainder of the Southwest guy's career. Ergo, by using either of the above methods without adjusting it in some fashion, every Southwest guy's career expectation just took a huge / big negative hit. Without the 50-80% increases in compensation, QoL, etc. to mitigate those effects, that hardly seems fair. Meanwhile, no matter how this plays out, all the AirTran guys realize a career potential that was heretofore unavailable to them.
I'm not saying how this is going to (or should) go, but I do imagine that an arbitrator would have to take those facts into account to even approach something fair and equitable. Just my two cents.
Fraternally,
PapaWoody