People in the know will say for that weight, you will be marginal for the handling on a SRW. DRW will be much more stability, however, driving that truck with "hips" all the time can be an aggravation.
You are looking at a pin weight of between 2500 lbs (20%) and 3500 lbs (25%). Look at the PAYLOAD of those trucks and consider all the weight of people and gear you will be carrying in the truck, plus the weight of the hitch (200 lbs or more depending on what and how its mounted), and the pin weight. Towing capacity means nothing, its payload that is important.
WARNING, look at actual door sticker payload numbers on the truck you are looking at, Do not go with website generic numbers, which are for stripped out gas models. Heavily optioned trucks weigh a lot more than bottom line trucks do. This cuts into the payload numbers.
Are either of the trucks set up with factory pucks? Are these both the HO motors with the Asin transmission? or the standard engine with the 68RFE transmission? Do both trucks have the towing mirrors? (they are NOT part of the tow package on any brand, separate item)
Charles.