I can't answer your exact question.
I was recently in a similar situation. I was looking at Montana High Country and Open Range.
For some reason Grand Design could not draw me in for a closer look.
We ended up purchasing an Open Range Roamer 367BHS. Picked it up last weekend, and have spent 2 nights in it already.
So far zero problems.
We love that it is relatively short, but big at the same time.
The other models we were looking at were 3'-6'longer. Trying to stay as short as possible was initially what drew us to this floorplan. I also liked the 7k axles on a trailer with a 14,600 GVWR.
Chris & Stephanie
2 kids - 1 boy / 1 girl
Winston (boxer)
2016 Open Range Roamer 367BHS
13 F350 6.7 CREW LONG BED SRW
B & W Patriot
02 F350 7.3 SC LB SRW - SOLD
2014 Keystone Cougar 281BHS - SOLD