I spent the extra $750 and got the 3.5 liter v-6 in my new truck. 365 hp and 420 ft/lb torque. Tows like a small diesel and gets 17.5mpg in the city unloaded. The truck is rated to tow 11,300 lbs...probably a bit high for a half ton truck. I'd feel more comfortable keeping it below 8500 though.
As much fun as they are, I couldn't justify a 3/4 ton diesel for my application especially as the diesel is around $6k more.
2006 23B Hybrid with 10k round bar WDH
2011 F150 4x4 SCREW Ecoboost, Max Tow, Integrated TBC, 3.73 LS axle, Firestone Ride Rite airbags.