As far as B+ motorhomes go, the best built I've seen are by an outfit called Coachhouse. Their apparent quality outshines anything either of us has posted in this thread. But of course, they're at the upper end of the market and their price reflects that. They'd be a bit more reasonable if they built them the way they do, but omitted the BS "luxury" crap.
OK
Since you think a Four Winds is a better built than a Host nothing more needs to be said.
Less likely to leak by far. "Host", whom I've never heard of before (RV companies come and go) isn't something I'd want. You don't believe me? That's your prerogative - just don't blame me when it leaks - and it WILL leak. I assume the 4 winds is stick built - which is fine as long as the damn thing doesn't leak! Leaking into laminated side panels isn't pretty either and will destroy ANY RV in short order. Saw a couple or three leak damaged units at a local RV repair outfit, all built like that "Host", all needing major work to fix.
I got out of RVs in Y2K, now wife wants one again. I don't. But you know how that kind of thing goes. My *VERY* first consideration is likelihood of leaking - this is Florida. That 4 winds will leak too, but its far less likely than one with stressed square corners - cheap, cheap, cheap, CHEEP! First thing I do when looking at any RV is look for where it has leaked. Climb into the overhead/cab over/overhang for those that have them and check the bottom front corners. If its more than 4 or 5 years old and has square corners, 98.05423% of them have water damage in that location if not elsewhere. Radiused corner RVs and esp. those with fiberglas endcaps are far less likely to be compromised - although I've seen some of those that were too, just not nearly as many.
There was an all fiberglas class C made in the late 70s, "American-Something", I can't remember after all these years. They were made by the same guy who started "Aristocrat" back in the day - near where I lived in California. They made a metric butt ton of them, and you saw them for DECADES afterwards because the damn things didn't leak at the seams so they held up. Coachhouse is much the same from what I can see. Pioneer fifth-wheels from the same period were one piece fiberglas endcaps and roof, they held up for decades as well. "Ardon" was similar, but didn't have the one piece including the roof - so I don't know about their leakworthiness but they did have the fiberglas end caps.
