Interesting comments. I can only give my perspective, from personal experience.
We have full-timed in a 27 foot Class A (horrible floor plan, never again will we own a rear bath rig!), a 32 foot Class A (spent the winter in Billings, MT in it one year. Yes that IS doable!), a 32 foot triple slide fifth wheel with one ton Dodge dually, then when we settled again, we got a 11.5 foot truck camper, then a 29 foot Class C, and now we have the rig in my sig.
The fifth wheel was great for full time living. The three slides gave us a lot of space, and the installed combination washer/dryer was wonderful. Using the one ton dually as a daily driver gave me no problems, but then we seldom use drive-throughs, so, although others have reported problems with drive-throughs, it was not a problem for us. I even accidentally parked it in a "Compact car only" spot at a shopping center! We also spent a winter in the fiver in Billings. For that winter, I rented a 100 GALLON propane tank. That was great!
Our current Class A (with living room/dining room slide out) would be fine for full time living, but I would miss the washer/dryer that it does not have. One advantage is that we can take either the truck or the convertible with us. With a trailer, either a TT or fiver, we would be limited to the tow vehicle. However, in Montana (and some other Western states) we could take the ATV on a trailer with us as a double tow. In Montana, the ATV can be made street legal.
Well, I could if DW would allow it...