My first rule when shopping for trucks was to ignore anyone who goes around brand-bragging and/or brand-bashing. I don't have time for cheerleading or tomato-throwing when making real decisions, and don't understand the urge people have to align themselves and defend a large multinational corporation because of what they drive. It's not religion for crying out loud, and all of these companies are corporate behemoths with comical Dilbert-esque problems.
Test drive them all, and you will soon start to see a winner emerge. It's pretty simple. When I bought my 2014 half-ton, I went into the process with no baggage and shopped/drove all the brands. Some got eliminated pretty quick based on things like gas mileage, feature/package availability, etc. Then it came down to the ones I liked to drive the most. The end choice came from a pretty solid decision process, and I was happy with the outcome and confident I made the best choice for my needs/situation.
I think all the big truck makers offer a good product and the differences are marginal. The trick is to find the one that matches your needs and budget the best.