Here is the UAL vs DAL Widebody Fleet Comparision.

For UAL I used an ALPA Council 05 blastmail earlier in the year that showed the year end UAL Fleet count - includes 747’s parked and the 3 additional 787’s and 4 777-300’s UAL takes delivery in 2018. DAL’s info comes from the DAL airline profile fleet count on APC and includes 747’s parked.

This only compares 767-400’s and larger aircraft (true widebodies pay wise) - no 767-300’s.

UAL
144

DAL
81

Percentage of Widebody aircraft per total airline fleet

UAL
19.2%

DAL
8.7%