Wife wants to move to a Class A, or C - bigger

Statistics are useless without explanation.
RV are driven much slower and more carefully than average car, so their number of accidents per driven mile is much lower.
Would you add golf carts to the statistics, they would beat all others hands down.
But would you consider golf cart safe vehicle in roll-over or head-on accident?
Heck no.
So correct comparison would be number of deaths in 1000 ClassA roll-overs v/s number of deaths in 1000 pickups roll-overs.
Use you head.