I towed our 8000lb 33' trailer for 3 years with a F150 Ecoboost Max Tow. I will admit it towed great. It had plenty of power but it's down fall was axle rating and GVWR. I always had to be careful what I loaded in the bed of the truck because when hooked to the trailer i had only 300lbs of payload left.
If your buying new I would spend the extra $$ on a Superduty. A F350 isn't much more than a F250 so I would step up to the F350 for the extra payload cushion. I have read the the 6.7 diesel gets really good mpg. Just as good if not better than the Ecoboost as a daily driver and I'm sure much better mpg towing..
I ended up getting an older 2001 F350 to get out of the truck payment and high property taxes. But I now have a GVWR of 9900lbs and rear axle rating of 6830lbs vs. F150's 7700lb GVWR and 4200lb axle rating.
And now being able to load whatever I need in the bed(firewood,kids bikes,coolers and one time a golf cart) and not have to worry about being over the trucks ratings is priceless.. Also down the road if you and the wife want to go bigger(fifth wheel) or heavier you will have plenty of truck for the job...
