I looked a long time at which truck to buy. Studying the different payload configurations is confusing and critical. Not only does it change for different makes of vehicles, but different models too. Of course everyone thinks their Make and Model is the best, but a lot is personal preference.
I chose the 2013 Ram 2500 Crew Cab, 4×4 with a 6.7 Cummings Diesel engine. I seemed to me the best matched for the Gross weight and pin weight of my Coach. If I went with a Ram 3500 or a Ram 3500 with dual wheels, it would have worked, but would have been more expensive to operate. Currently I average 18 mpg, but I can get up to 23 mpg on the road. When pulling my Coach I average 13 mpg.