Pinnacle Pete isn't too far off the truth. The problem with your 'fair relative' way is that it doesn't acknowledge a *certain* carrier's shrinking future. Colgan brings a junior group, but a fast growing one. Pinnacle brings a group comparable to Mesaba (except on the senior side (before 2000)), and in addition, brings a constant jet fleet (no growth or loss). The remainder (Mesaba) brings a relatively senior group with a shrinking fleet type. Any relative integration will have 9E/9L take a burden for the loses of those Saabs.Wrong way....Pinnacle Pete's way. Right way....some form of a fair relative seniority for all pilot groups involved.
In conclusion, there just isn't a 'fair' way of integrating this. I'd imagine some kind of hybrid list. I don't see a single method applied uniformly. Regardless, hopefully there will still be protections (time) before people start jumping across certificates.