I own a top of the line 2015 Newmar King Aire and I've had the pleasure of visiting Mr. Marks Prevost. His Prevost is much nicer than my King Aire. But you won't be disappointed with either.
There are great advantages to the Prevost, but there are also some minor quirks such as the steps are internal vs external and the exhaust in the rear is above the coach, not lower at the bumper. The quirk I disliked the most was the split windshield on the Prevost.
The Prevost is definitely a driver's coach. But as others have said, if you plan to spend a lot of time at the campground, maybe saving the money would make more sense.