I think truck to truck they are pretty similar and really cant go wrong with either. Ford has that sun roof which is cool and they seem to be more cutting edge then Chevy but that is just an uneducated opinion. I always owned Chevy's so maybe it's a greener grass thing. Really its going to be up to you on which you like better. Ford did or may still have the max payload 150 that I was interested in but could never find.
One thing to take a look at is payload of the trucks and understand how that equates into towing a TT, max tow is really a useless number when towing a travel trailer.
I use my 3/4 ton in the same fashion you will use yours and minus the 12mpg and needing two spots next to one another to park its not a terrible daily driver.