If the diesel can give me 3-5 mpg both unloaded and ESPECIALLY towing it would be worth the cost. 8-9 mpg towing with my ecoboost stinks.
Sure my eco has good low end torque but it doesn't have the fuel economy towing that a diesel does. My 2013 PSD towing would get anywhere from 3-5 mpg better than my current '13 eco. Hopefully the 15' F150 being lighter would get even better.

 

My bad luck in the PS 6.7 has me hoping the improvements to the turbo as well as motor refinements. Love the diesel always will but as for now and all the bad luck I am turned off. Go for the EB put a 100k watch for ford improvements or keep the EB and get an old 7.3 for my heavy towing found one online local sale 1999 7.3 104000 8900.00 as far as the 15 F150 give it a year follow the forum let ford fine tune the machine with public use and reassess in 2016.