Help from GMC/Chevy 1500 6.2L owners with NHT package.

For what it's worth, the 2500/3500 HD trucks drive and handle very well as a daily driver. The down side is they do burn more fuel. I averaged 13 daily driving in my previous 6.0 gasser 3500. The upside is you can get whatever trailer you want and safely have the suspension and braking capabilities to handle it.
The HD trucks are so much nicer in my opinion. Once you tow with one, you will never go back. The 6.0 power train is made for towing.