Good info here guys:
http://news.pickuptrucks.com/2016/01/whats-the-best-light-duty-truck-for-towing-2016-texas-truck-showdown.html
Also here
http://www.tfltruck.com/category/show-segments/ike-gauntlet/page/4/
6.2 looks like a great option. Only downside is you have to get the top of the line trim options to get it. $53000 is not a cheap 1/2 ton!
I don't know why anyone would buy a 5.3 over the 6.2 other then to save money.
Watching the videos, the Ecoboost low end torque is still advantageous towing. They shift less and can run less RPM.
If you read the pickuptrucks.com dyno numbers, the 2.7 Ecoboost makes 4 more ft lbs of torque and at 1000 RPM less then the 6.2! Very impressive IMO.
I don't think a guy can go wrong with an Ecoboost or a 6.2, but the turbos definitely help at elevation and add low end torque.
Just my 2 cents.
Something is wrong with their dyno if the GM 6.2 lost 114 ft-lbs of torque on that dyno to what it is rated at and the Ford only lost 27 ft-lbs. Makes zero sense.