What about CO/UA.
Supposedly US is also in the mix
I think US airways is in the best position( and wouldn't surprised if TPG, which is looking into the takeover as well, was working with Us air)..
They have virtually no crossover on routes(both have 5 domestic hubs, none are the same) US air isn't as strong int'l as AA is, and the combination would have a better shot past regulatory agencies than delta-american....
Only 2 issues in my mind 1) One world vs star alliance; where would the combination go? 2) Us air is a big airbus airline, while AA is a big Boeing airline, so from that standpoint, it may not save too much money in maintenance.