Ford PSD...2K F-350.
MPG's with mine vs. the F-150 I had with the 4.6 Triton is like night and day. Towing with the 150,lucky to see 8-10 per. gal.
With the PSD towing or not the mpg. checks have been between 17.4 and the best @ 18.64.
Maintenance is an issue with diesels but it's not too tough.(i.e.-fuel filter,keeping the air filter clean,cavitation additive in the cooling system,etc.)
Insurance for me is about the same. Commercial coverage was almost the same on the 150. Fuel costs are less over a years time.
Weight is an issue for me also. I wanted a heavier truck. The one ton does the job and then some.
I'll take the diesel over a gasser anytime.