I see more F250s and F350s around here than I do other brands. Second in place seems to be Ram trucks but very very few GM/Chevy, why is that? The GM/Chevy seemed to score better than the other two: http://special-reports.pickuptrucks....winner-is.html
I've had my '15 F350 for 2 months, 4400 miles, nothing broken yet other than my finances
They are all good trucks and are pretty similar in performance. As long as you are happy with your ride, that's all that counts!
I will say one thing that owners of Ford/Dodge/GMC can agree on: Modern emission controls SUCK!