One of my friends works at a shop that has been selling 6 door superduty's. They take a regular 4 door and add the extended cab from another truck I guess people must really like them. The just built a truck for a guy that hauls hay it's a tonner dually and gets 22mpg highway unloaded, the trailer he pulls when loaded is a 16 big round bale trailer. They also play with excursions at his shop the owner had one with 35's and he could spin donuts with it on pavement, some guy brought his brand new Hemi dodge out to show it off and they got out the excursion and started wipping nuts doing a smoke show when the excursion grabbed and T-boned the dodge, oops. Dodge totalled and the excursion minor damage.
On a comfortability note: My F150 Lariat is a much nicer road machine than any Chevy or Dodge I've been in and it's my daily driver 1000 miles a week. But it's not a diesel.