We went from a 15 GMC Denali dually to our Ford. I was looking for another GMC but decided I at least needed to test drive a Ford just to see what all the hullabaloo was over on the Ford diesel forum. I was so impressed that I quit looking and bought the Ford, and I've had nothing but GM for years. They are all good trucks but there were features on the Ford that I couldn't find on the GMC's like adaptive cruise and the tow camera system. Trivial, but my wife's favorite feature is the massaging seats. Really nice on those all day hauls.