Tug, as you can see by my signature I own a 2003 Newmar Kountry Star 3740 since new with over 125,000 miles it has been probably the best motor home dollar for dollar that I have ever owned and that includes my Essex.
The 2003 KS has the Workhorse W22 chassis and other than the brake recall a shock change to Koni FSD and a new computer for the Allison Transmission, it has been flawless, best advice that you got was from FunTwoDrv, Gary is right, drive them both.
Good luck and let us hear back when you decide.