I drove all 3 of the american boys when selecting last year. requirements were 1-2 years old, low miles and v8 as I don't tow enough to justify a diesel nor could I afford it and must have the basic tow package.
my overall opinions were:
'16 ram was the best contender if all I wanted to do was tow. it tached 500rpm's higher than ford/chevy on the highway at 70 and felt like it was better set up to tow but it felt like the "budget" choice of the 3 inside.
'16 ford was the one I went in wanting. drove the 5.0 not eco. it had the coolest features for backing a trailer for the novice. I couldn't get over the oversize grab handles on the A pillars that felt like they were in the way.
'16 chevy is what I brought home. power felt on-par with the ford but the dealbreaker was the more compliant ride on rough wisconsin roads day in and day out. it flat out rode better than the other 2 for a truck.

having had it for a year now i am consistently getting 18-19mpg's daily on my Fuel Buddy app(not the bs computer on board) and towing the boat from Wi to Ut averaged 9.5 which is a couple better than my old '00 f-150 triton.

I know that all make great rides and tons of arguments for each exist. great to live in america and have the choice