Here is my idea and I feel that you will all have a great time crapping on it. What if.....
Any US Airways pilot that stays in a US Airways domicile retains their seniority and all their expectations. If they bid for the AWA domiciles, their seniority becomes "Date of Merger" (DOM) in that domicile. If an AWA pilot stays in an AWA domicile, their seniority and expectations remain the same. If they bid to a US Airways domicile, they get DOM seniority. If a new domicile opens, ratio merge or length of penis (sorry girls) or something else that is fair. That way everyone retains the expectations they had before the merger and no one displaces the pilots from the other group.
A straight ratio merge would be unfair to the AWA pilots because the US Airways system is shrinking while the AWA system is growing or at least remaining the same size. We are having upgrade classes. It would be unfair for a USA guy to step in front of one of our FOs for a upgrade in our system. The same would be true for one of our guys taking a captain slot in your system instead of bringing one of your FOs back to captain status. And while I don't think any furloughed guy should go in front of any flying pilot, I do think that they should be brought back before any hiring at the new carrier.