GM will have the best ride due to IFS, also has the least amount of ground clearance for the same reason.
Steel body (through 2016) Fords are 6" wider inside the cab than Ram or GM.
Ram offers factory airbags to level the load and has the best engine braking feature, though '14 and newer Fords have gotten closer.
They're all quiet now. They're all relatively reliable when properly maintained. They've all got neat towing gizmos like factory trailer brake controllers, back up cameras for hitching up, telescoping side mirrors. Ford can be ordered with factory installed gooseneck/5th wheel hookups. I think they've all got lights/brake plug in's up in the box corner as well as below the rear bumper. They've all got provisions to shift the automatic tranny "manually" with a button on the stalk.
They've all got PLENTY of "GO", enough that one can easily get overconfident and in a jam by not being able to stop. Drive them all and take your pick.