Folks should stop thinking of needing a 1/2 ton or 3/4 ton or 1 ton, but rather work the numbers for their setup (or proposed setup). There are many capable trucks out there, get the one that meets your needs.
Please don't assume from post above that all Ford F150s have a 2650lb payload, but there are some. The door sticker is your friend.. Some 3/4ton pickups have dismal payload ratings.
I think the big mistake is folks look at tow rating (I know I did at first), not realizing that the payload or hitch specs are going to come into play before tow rating in most cases with travel trailer...
We have a 3/4ton that is my occasional driver (I work from home), but otherwise is dedicated to towing.