Aside from the safety, which there are different opinions on, the road worthiness still shines as a key reason for choosing a bus.To me, most traditional S&S motor homes are designed around being great once they get to the campground. On the road they are acceptable, usually. You have to pay quite a bit to get a S&S with good road manners.The design priority of a bus conversion is different. Just starting out with a bus will result in a vehicle which is designed to be on the road all the time and to have good road manners. Comfort in a campground might not be as high as a S&S, but road manners will (IMO) always be better.
I have to disagree with you on that my CC drives and handles as good or better as any bus we have owned it is a heavy sucker though