I really think you need to stop worrying so much about these numbers and start test driving.
Because on numbers alone a 2018 Ram 5.7L Hemi has more torque then an Ecoboost at 410 vs 337 but actually towing with the two would give you a very different impression and I doubt that anybody who has towed with both would pick the Hemi over the Ecoboost.
Just saying that these numbers can say lots of things but none of that matters when you are actually hooked to the trailer running down the road.
For the MOMENT, all we have to play with are "The Numbers" till we get some REAL WORLD towing done.
If you have a fully loaded 4 place enclosed sled trailer, head over to your dealer and ask him to let you take one out and do a nice hill pull and report back.