I agree they are all good trucks. I've been a Dodge guy for years but that is due to the Cummins and a great dealer. In reality they all work well, tow a whole bunch, look good, and cost more than my first house.
Buy the one that you like, is a good deal, and mom agrees with.
2013 Ram Longhorn 3500 Crew Cab 6.7 Turbo Diesel, Aisin Transmission.
2014 Jayco Eagle Premier 351 RSTS, Mor/Ryde Suspension and Pin Box, 17.5" wheel upgrade, 18k Pull Rite hitch.