We looked at Montana, Cardinal, and Cedar Creek when we were shopping for new in 2007. All pretty much looked the same as far as fit and finish and overall build quality. Ended up buying the Montana as it just kept pulling us back. Never a regret as it has been more trouble free than I could have ever hoped for in the 8 years we have owned it.
Reading these brand postings on these forums for years, there are people who are very pleased, and there are people who have been disappointed, with all three of the brands.
The Montana Owners Club forum is a very active forum with lots of friendly and helpful owners for all your questions.