2004 Class A gasser

First thing I'd do if seriously considering both mentioned is to examine the maintenance records of each MH.

I believe the Workhorse chassis with it's slow turning V8 and Allison transmission will be a better drive. With that said, production of that chassis was discontinued some time back.
Me, being a strong Ford guy would still buy the Workhorse chassis, given the choices you have.

Richard

At 18yrs old, maintenance and condition count for far more.

It's really difficult to give you any helpful/meaningful advice without more information about what you plan to do with the motor home(s) and more information about the motor homes you are considering.

Will you be living in the vehicle full time? How many people will regularly use it?
Occasional travel? Extended trips? Sleeping configuration? Floor plans?
What will you be primarily using it for?
Will you be regularly towing? What are the GVWR's?
What are the wheelbases/towing capacity of the vehicles you are considering?
Do they have slides? Do you want levelers? Washer/dryer? Solar Panels? Generator size?
Propane/electric or residential refrigerator?
Do you boondock or stay in RV parks mostly?
Are you handy or do all repairs require outside technical help?

Just a few questions, . . . . . (there are many more)

Chum lee