Looking for expert tow vehicle advice/opinions

Thanks all.

Jerry, yes I have been thinking about the newer 6.7 psd, but have seen a few things about faulty turbo chargers. I've had all three diesels in the past for short periods of time with all good luck. I just don't want a truck where I'm going to have costly repairs in the early stages. BUT, I suppose that can happen with any of the three brands.