Only comparing diesels here. I have a 2012 Ram 3500 dually diesel. 198,000 miles. About 70% of miles hauling and fairly heavy loads. Not unusual to scale around 26,000 truck and trailer combined and sometimes more. Transmission work under warranty at 62,000. No trans issues since. Other than that I have done wheel bearings on all 4 wheels, ball joints upper and lower on both sides once. Replaced oxygen sensor under warranty. And lots of tires. That's about it. No signs of rust anywhere on the truck however in the winter I wash regularly anytime there is salt on the roads. Love the truck, still very little hwy wind noise, and still sounds solid on the road with no creaks or rattles showing up after 7 years of use. Great ride as well. It does seem to eat up tires but I chalk that up to how heavy my loads are. Usually the rears where out just ahead of the fronts. I have a couple of friends with 1 ton fords and I test drove a few as well. My buddy Ron hauls for me and often we are meeting along the highway somewhere to grab a trailer from me or him. The ford diesels are snappier of the line, much better throttle response from a stop than my ram but when it comes to towing heavy I prefer my ram. The fords drag *** under equal loads. The exhaust break on my ram is superior to his ford as well. His ford also beats me to death compared to my truck. If I had to buy again Ram would be my choice however with all three mfg making nice trucks money talks and would take a look at the other two again if the deal was significantly better.