I too have had all the big 3. 1/2, 3/4T Chev/GMC, 1/2, 1T Dodge/Ram, and 1/2, 3/4T Fords. The 1T Ram, 2012, CC LB Dually was good but thirsty. Because fewer on the road, fewer after market parts, i.e. dually tire valve extender kit. Currently have the 2016 F-250 4WD, CC, SB, diesel and am very happy with it. None of the towing capacity figures are accurate because no one buys a base model that the manufacturers base the figure on. Choice is purely a personal preference. The published torque and HP values are very similar in real world use and few people will notice any real difference when towing.
A note on fuel economy. My last 2015 F-150 and current F-250 have remarkable fuel economy, 21+ if I were to believe the fuel computer on the trucks. Generally Ford puffs up that figure about 10%, so when it says I have used 18 gallons, I fill with about 20. Would love to see how they REALLY calculate the computer figures. Don't know if GM or Ram does the same thing.
2020 Keystone Raptor 356
2012 PT Crusader 355BHQ (GFs)
2020 Ram Laramie 3500 DRW CC 4WD Diesel