R-Vision was a manufacturer of towable RVs, and type C and type A gas motorhomes. They specialized early in smaller lightweight units. R-Vision was acquired by Monaco a few years before Monaco bankrupted, Monaco first moving manufacture of its lower price RVs (towables, all four brands of Cs and A gassers) from the H-R plant to the R-Vision plant.
Price point for the Condor was about the same as the base Georgie Boy models (Georgie Boy then being owned by Coachmen).
The Winnebago you are looking at is their "top of the line" gas motorhome for that period, Adventurer replaced Chieftain. The other two should be more plainly trimmed, they were priced entry level.
It is not a bad idea to pick one because you like the layout, if you understand how you will live in the layout. The most common reason for selling a RV to get a new one is that the layout didn't work once they tried living in it.
Three is not many to have looked at. I think I must have looked at more than a hundred different RVs of all types (went to shows) before making a choice. I'd keep looking, unless one of those really works for you. Especially in older RVs for which there is no parts support no matter what brand, how it works and what condition can be more important than which manufacturer.