Ranking Manufacturers

The only problem is the people that bought a Tiffin thinks that is the best. People that bought a Monaco think that is the best. Obviously anyone that bought an RV thinks what they bought is the best for the money they spent and very few will admit to being idiots and making a bad choice. Unless you find someone on this forum that has owned many different coaches, and can be totally objective in their ranking, then you are just getting opinions from people that have never owned certain makes or are just giving a biased opinion of what they did buy.
Your best way is to try to search through old reviews online about certain coaches you may be interested in. That way you usually can get an unbiased report about the different models.