Just one man's long-winded opinion but here goes:
I loved the old big Chevy Blazers and GMC Jimmy's (Sheriff Brody, Chief Hopper). By extension I have to like the Tahoe and Yukon as they are the closest relative to that. The 2007 -2013 Tahoe Yukon is a comfy platform with a lot of room. I have a 2013 GMC Sierra but want to pick up a Tahoe or Yukon when I can, and the 07 -13 is a nice choice. Preferably a z71.
Everything is covered with a hard roof and you can reach any item you need without getting out in the rain if you rely have to. Lots of seating, lots of storage. Good lines of sight.
Having said that, I think the Denali is the toughest to work with. It pushes the envelope of comfort and technology and therefore usually requires more convoluted methods of doing just about any modification. Magnetic ride is one example. All-time All Wheel Drive is another. Larger rims with thinner tires, auto-leveling, etc.
Even though that's the case, it's a really nice comfy platform, so enjoy it for what it is. Pack the cooler and some camping gear and go on out there. They aren't the most capable SUV'S out there, but they are still very capable, and are great people or cargo movers. So you wont be rock crawling but you can go down trails -and do it in style!
For me, I wouldnt go with the 2014 - 2020 Tahoe/ Yukon anyway. That front bumper spoiler is about the closest to the ground as I have ever seen, and the amount of technology in them is wonderful, but seems constricting. The latest design, the 2021, has a better front design, especially the z71, but that has air ride now too, and is most as long as a 1970's Suburban.
