DAL guy here - Considering the environment I think both groups have a pretty good deal. This industry disruption is unlike past disruptions becasue it was partly government mandated and not merely part of the business cycle. The CARES act totally muddied the water on the standard furlough plan and a new solution was needed.
My two UAL buddies (upper middle third CAPT and lower middle third FO) both voted yes - the former gained much more than the later, but in the end they both were for the deal. At DAL there was overwhelming support. Neither deal was perfect becasue in the end some will always gain more than others. If every deal has to have a similar impact up and down the seniority list - most deals will never be made.
One final thought - we are still in the middle of this and have no idea how this will turn out until we are looking back. In retrospect both of these deals may look better than they do now.
Scoop