All of the above seem to be good advice. I have only owned Dodge light trucks, 250's and 350's for over 40 years. At present on my two ranches I own 6, all diesels. My own experiences indicate to me that for almost any work, including pulling sizeable trailers, Diesel is the way to go. For pulling any sizeable trailer, especially high profile RV's, I believe that a dually is preferable. We have both dually, single, 4X4 and 4X2 trucks and they have been selected for the job they do. For pulling our RV's (I have owned 5 over the past 50+ years) I prefer a Dodge D3500 4X2 dually with the Cummins engine, and not a 4X4 single as are some of our ranch trucks. I believe any other brand of truck would have been acceptable.
Many of my family, employees, and neighbors own and use Ram, Ford, GM, Toyota, etc., and all are happy with what they have. I believe they are all good vehicles and my own experience and observation indicates that selecting a truck for the way it will be used is more important than the brand, although considering the use, different brands may have an advantage.
I also own semi trucks and Since the 1960's we have never worn out a Cummins diesel engine in our large or small trucks.
I have heard a few comments from one of my family and a few neighbors concerning the new trucks that require DEF for the EPA regulations. (I don't think RAM trucks with Cummins engines require DEF yet.) We live and work in Colorado and DEF freezes at what we call warm winter tempertures, +12° F. The same ones tell me that DEF reduces MPG with their new trucks compared to those older than their new ones. I do know that our newer tractors that require DEF required us to provide warming tanks for bulk DEF used in the winter. I learned this the first winter when our new John Deere would not run with the Bale Buster to feed cattle until we rigged up a heater for the DEF bulk tank in the shop and a plug-in heater for the DEF tank on the tractor that is parked over night.
Give some thought to how and what you will use with your truck and I believe most brands will be satisfatory.
