ON EDIT: I've owned Chevy D/A's from 2002 through June of 2010, great truck, can't go wrong with it, Last one I owned was an 07.5 Dually, loved it.
Have owned Dodge/Ram trucks since 2010 and can say I'm really impressed with the newer Dodge/Ram trucks....truck in my sig has a little over 19,000 trouble free miles on it including a lot of towing my 5er (weight of 16,200#) mostly in the mountains.....Lot of room in the crew cab that I've seen and the truck is a towing animal.
I'd make sure you purchase "enough truck" to do the job you may need for it to do in the future if you plan on "going heavier" later down the road, probably less expensive in the long run...
Pick a model and color you like and enjoy:)