Forget whether it's FWD or AWD, you want the engine in it of your choosing. We already know that you can't get AWD if you choose the four banger, so let's concentrate on what makes you happy.
My choice would be the Ecoboost 3-5 V-6. After all the very positive revues, including the one from our resident owner/expert out in Manitoba who abused the engine all the way to BC and back and still enjoyed it.
I think Ford is missing a potential market here, even if there is some demand for the smaller engines. Maybe down the road they will offer it, in the meantime only the F-150 people get to have fun.