Their all good trucks anymore. Ford and GM are going to have a body style change shortly. If you can hold off on buying a new truck for a few years you'll be better off. They have all made the emissions, now they will start on fuel mileage. I owned all three makes of trucks in the last 10 years. The 7.3 Ford lasted 315k and cost 3k parts to keep it going for 6yrs. The Duramax has 170k and still going, had a couple of injectors put in under warranty and 6 u-joints. The only money out of pocket was for after market u-joints once the warranty ran out. The Dodge had AC problems, it would not cool at idle, put 3/8 pound of Freon in and it's fixed so far. The Dodge only has 55k on it so far so good. But the exhaust system has me worried, a message came up that said the exhaust filter was 70% full I don't know what the heck that's about. Had a friend of mines 09 Duramax exhaust filter plug up at 150k and it cost 1,600$ to get it fixed.
All I have left to say is good luck, and I hope you pick the right one out.