All great comments.
I agree that price probably should be the driving factor. Get as much as you can off of MSRP if buying new and drive the thing. Most "issues" are minor and the other ones can be taken care of at many authorized service centers.
There is a review site here...
http://www.rvservicereviews.com/
You need to review ALL of the reviews for a particular company since the "overall rating" can be misleading. It isn't necessarily updated regularly but it gives good info. It is interesting how many reported bad service while others went above and beyond the call.
Personally, I am making "those" highlighted on my copy and am keeping it in the DP for reference/use if necessary...esp. the mobile ones.