I have a company truck so I don't need to purchase my own. That being said if I were to purchase my own it would be a 2500 with the 6.4 HEMI. You could probably put a new long block in a hemi truck for the cost of injectors in a diesel. Since the EPA has tried to get diesel trucks to shoot sunshine and rainbows out the tailpipe they just aren't any good.

My work truck is a 2016 Silverado 3500 with a Duramax, mixed driving it gets 12MPG completely empty. That is because once a tank it cleans the DPF filter and totally wrecks the mileage. It can take a tank from a 15mpg average to 10-12 when it does a regen to clean the DPF. That is the dumb stuff modern diesels do.