Should Mention I have 6 trucks in my fleet. 3 GMC's, 2 fords and 1 dodge. 2 GMC's have been great with over 200k on each, one had a couple minor problems and has 170k on it. both Fords are in the shop once a month and have been horrible since we got them. One has 250k and one has 115k. The dodge has had a couple minor problems but has been pretty good.
For comfort and ride quality the sierras have been the best for us.