I'm a newbie here..
Great forum you all have going! I have a 2500 6.6 Gas on order, due for July. I occasionally drive work trucks, both gas and diesel, 3/4 and 1 ton. Everyone I know says get the 3500 to have the payload, but picked the 2500 over the 3500 for the ride. Inevitably, my wife and I will have to take long road trip with it empty and the 3500 would be simply too springy for her.
The design philosphy for the L8T and the 6 speed. I must be exactly the type of person this combo was designed for.
A proven 6 speed that have been methodically steadily improved for a long time. And a motor that based on a bullet-proof platform with an eye towards, approaching diesel performance ( at least I appreciate the effort ). This kind of stuff is awesome.
Plan to tow 8-10K probably every other month with some moderate construction work on a regular basis.
Have test driven everything, had an interesting experience with a 60K mi used 2020 3500 Diesel. The truck looked great, but man the transmission was tore up. Clunky on multiple gears. Had alot of miles on it, probably driven hard, but.... scared me. That solidified my decision on the gas.