Having owned both, my perception is the Ram is a high torque lower RPM traditional diesel. My Ford felt more like a high revving hot rod truck engine. Strangely I prefer the feel of the Ram. No issues with the 2 Rams I owned. The Ford(2012?) had to be re flashed twice and didn't help the issue of at the worst possible time, like pulling into heavy traffic with the boat, it would cough, spit, and fart until just before I got run over, and then decide to run.
I bought the Ford diesel because I just couldn't stand screaming up hills, getting passed by18 wheelers, then flying downhill and passing the same 18 wheelers again, and again, and again.
Get a diesel dually and put a big sway bar under the rear and get on the road.