RAM 2500 6.4 Hemi 3.73 gears, Looking for Opinions

Looking at a new 2016, crew cab 4x4 short bed, down to that or the F250.

Also, I am in western Washington state, so close to sea level, with some mountains, but nothing to extreme.

Another hope is that the 3.73, will allow lower RPM, so it will run on 4 cylinders more often.