Thanks folks. Lots of ways to skin this cat. With one methodology, UAL is the clear winner in wide bodies. Of course, other approaches will yield different results. I just added up active and ordered true wide bodies (ignored 757 and ignored retirement plans), primarily because I can't guarantee the pay methodologies will be similar across brands for the next two decades.

UAL: 26% widebody
DL: 17% widebody
AA: 15% widebody