I switched from a 2011 Taco to a 2019 Silver-RAY-do this winter. More HP is nice and all but I miss my small truck, I went anywhere with that thing with little issues. That truck served me VERY well for close to a decade and I only had to change two ball joints on it (lifted+spacers+33in tires didn't help), in comparison, I've had two recalls on my Chev since xmas... I've changed my hunting style, I used to go down trails with my Taco and leave the ATV at home, now, I drive to the trail head, unload my ATV and give 'er. My next truck will most likely be another Tacoma unless something crazy comes out in the next five years. I sold my 9 yo Taco in December for 18,000 Canuck Dollars, that's INSANE all things considered, that thing was scratched, dented and had been to some intense places. I could've easily sold it for more if it were a city truck. Sold it to a company that buys trucks in Canada and sells them in the states. Somewhere in Montana (I think), someone will get a very beat up but reliable black 2011 Tacoma V6 with a black space cap, Dewalt roof rack, you sir, are a lucky man.
In terms of HP, I see no difference with the box loaded or empty with the Silverado, the Taco I could definitely tell when it was loaded with the ATV. In terms of pulling, I've hauled the same trailer, a 21 ft camper, with both trucks and here are my observations. The Silverado handles extremely well hauling a trailer, no doubt there, but the fuel mileage is just as bad as with my Taco. Hauling the RV with the Taco was definitely a rough ride but in terms of fuel mileage/travel speed I could do the same as my Silverado.