Lots of times it comes dwon to which 'plant' makes your model. Some are better than others.
But end of day Look at which Manufacturers BACK UP their product, get back to you , and truly try to help problem solve. vs trying to find 'best built' as no such thing exists.
As for local dealer etc.. buy where you get the best price. I bought from dealer 1500 miles away ( RVW). For a 1 year warranty to think buying local will help is a misnomer. YOu will still have to wait forever to get things done etc. Once out of warranty there are many, non-dealer options for service work.
My 3 cents.