The Ford is going to produce more usable HP and torque then the Ram will due to the turbos. The Ford is capable (with max tow etc packages) of carrying more payload weight.
I think the Ram is more than capable of handling those weights, just as the Ford is more than capable of handling those weights. If you are used to the lower RPM, higher boost power of the twin turbo, you might find yourself disappointed with the different traits of a naturally aspirated Hemi.
Either truck should work, hope they can fix the Eco for you though!