"Yeeeeeeeeee-haw!!!!!!"
Your F-150 by far.
We all know a CSVT can beat a hemi durango in the 1/4.
The Durango (4.7L by the way), is an absolute dog in towing and has very little Torque. I'd put my money on the F-150- more torque, less weight, higher HP, and a heavy duty auto. Go tug his his ass down the street and have fun with the money. Wait... how much money are we talking?!