I would agree to go and drive them to see which one you are most comfortable in and which one works best for you ergonomically.
One big consideration should also be how long you intend on keeping the truck and putting some thought into the long term ownership costs. This was a huge consideration for me because I plan on keeping my truck a long time. A look under the hood of each one will give a clear indication which one is simplest (Ram Cummins).
I was a 20 year die hard Ford guy until I got caught up in the Ford 6.0L diesel fiasco with poor reliability, expensive repairs, and a complete lack of confidence when travelling far from home with the RV. When I was looking for a new truck I looked at the new Ford 6.7L diesels and one look under the hood convinced me that I was not about to put my hard earned money on such a complicated animal that will undoubtedly cost a lot of money in the future on repairs. The CP4 high pressure fuel pump failure issue also convinced me to stay away from them because it will certainly fail some day if one keeps the truck long enough. The city I work for has predominantly Fords, however we have made the switch from diesel to mostly gas because of a long history of very expensive repairs.
I made the switch from Ford to Ram 4 years ago and do not regret my decision one bit. Good luck and please let us know how you make out!
