I went test driving trucks a week ago and came home in a 2015 GMC 2500hd CC 4X4. My personal feeling was the GMC offered the best ride with the Ford a very close second. The Ram was definitely the firmest riding of the 3. All 3 were 3/4 ton trucks. It was no where near as firm as my brothers '06 Dodge 1 ton, a truck with a truly brutal ride and one I would not own. Surprisingly, the Ram carried the least payload of the 3, nearly 400 lbs. less. Air pressure certainly makes a huge difference in ride quality but I can only assume they were all comparable. An earlier poster was correct, you pick the tool you like best and live with the negatives