I shouldn't jump in here but ....
Prevost are a little over built for the RV market, IMO. They are made to run 100's of miles day, day in and day out for millions of miles. Rv'ers will never put this many miles on.
I own a Prevost because of the safety aspect .... you & your family will survive most accidents, if you remain inside, and will live to tell about it. There are very few coaches build other than Prevost, MCI and Bluebird (Wonderlodge) that have a track record to back this up.
I've never seen a Newell entertainer coach, only MCI's and Prevost and Prevost dominate that market, why because they can run 90 MPH all night and day safely ...Eagle buses are being built again in Texas so we'll see how they make out.
I would say the interiors design and sytems equipment on a highend Newell and converted Prevost are about the same. I'm not a slide guy ... I live outside most of the day and if I can live outside because of the weather, I move to where I can.
As my handle states my Prevo is an 82 ... I doubt that an 82 Newell with 1.5 million miles on it would look this good ... I think of it as my bus is now in it's retirement years (RV, it was a highway coach) the long hard fast miles are behind it ...well the long hard miles
Ron
On edit ... if you get to drive one you will know why they are King of the Road .. they are rock solid at any speed in any wind.... even my 25 yr old coach.