My prediction is that the arbitrators will not make a decision based on pay and that it will not influence their award.

I will go out on a limb and make a ridiculous assertion that the arbitrators pick 2010 as the merger year (I just randomly picked that year. There isn't really any basis for it as we all know the merger isn't done until all the unions have contracts, etc which could be 2015 or later) and use longevity, status and category, and career expectations.

I randomly picked these three instead of the mandatory ones by ALPA policy which are 1. pre-merger W-2 pay for a few select pilots, 2. Who flew a bio fuel flight first 3. How many 737 flights on international segments (i.e. Texas to Mexico) and 4. Being in the top 3 airlines to get a 707 in the 1970s.