My 5er is 13880 lbs and nearly 41ft length. Have no problems towing it with a 1 ton SRW. That said, I know many people who have towed large 5ers with both would tell you hands down the best towing experience will be with the DRW, and they are likely correct. But, Im happy with my setup, have never had any issues. Have experienced one panic stop in wet weather and never felt out of control in the slightest.
As others have said, brand is what you like best, but for a 5er in the 14K territory, IMHO, diesel is the only way to go.
Mike
