I traded a 2018 sierra 6.2 in for a 2019 sierra 5.3 in december. No regrets from me. The power difference is barely noticeable and when I get on the 5.3 it has plenty of get up and go. I haven't towed yet ,but my boat isnt that heavy anyway. Fuel savings is a plus, since I no longer have to use premium gas. The 6.2 was overkill for what I need the truck for. If you plan on putting a lift and bigger tires, I would probably go with the 6.2, bc I drove a 5.3 rocky ridge that left me wanting more.