wtmtnhiker,
Well, since they are both on floorplans you can live with, I think you've settled on the most important part.
As for Workhorse vs. Ford, those years were pretty competitive between the two manufacturer. You'll find proponents & opponents of both. For rigs that old, I have to say that overall condition is a major factor which would effect my decision. I don't necessary agree with those that say the WH will have parts issues. I haven't, yet. The low mileage on the WH does cause one to raise an eyebrow, but perhaps it was just driven to a relatively close campground several times per year or left there for the season. So it was driven every year, but just not far. On the other hand, if it's just been sitting with NO activity (and this goes for the Ford as well), I think I'd be more worried about possible water or rodent damage if it hasn't had regular attention.
Unlike TechWriter, our WH drives and rides very well. It's no DP, but I've driven much worse. The first thing that needs to be done for steering control is to make sure the front tires are at the proper pressure. Dealers and tire places inflate them to the maximum on the sidewall of the tire, and I can tell you that driving mine that way was a handful. Lowering the pressure to the proper psi made a HUGE differece. I also did upgrade the shocks a few years after I bought it which helped the ride over expansion joints and rough surfaces.
One thing you should know IF you're trying to compare specifics of each chassis, that it's quite possible that the 2005 WH is on a 2004 WH chassis, and the 2006 Ford is on a 2005 Ford chassis.
You also probably noticed that there are a lot more Ford mohos in the era than WH. The main reason for that is because the WH had anywhere from a $2,500-$5,000 premium on it over the Ford on the EXACT same floorplan. Most of us that bought the WH felt that premium was worth paying for (Allison transmission and lower doghouse, in our case. For what it's worth, I usually preferred Ford to GM). Anyway, dealers ordering models for their stock or customers who didn't know the difference, would order the Fords because of the cheaper price tag.
Can you see them for an in-person visual inspection and take each of them for a test drive?
Good Luck,
~Rick
2005 Georgie Boy Cruise Master 3625 DS on a Workhorse W-22
Rick, Gail, 1 girl (27-Angel since 2008), 1 girl (22), 2 boys (23 & 20).
2001 Honda Odyssey, Demco Aluminator tow bar & tow plate, SMI Silent Partner brake controller.