As far as trucks go, the higher trim levels kind of seem like a waste to me. The Denali and all that stuff is pretty sweet, don't get me wrong, but is it worth the extra money? Truck prices are already ridiculous as it is IMO. And if I spent a lot of money on a high end truck, I would be hesitant to actually use it as a truck, which kind of defeats the purpose.
Personally I would go with a 2010-13 Sierra with the 6.2L.......
http://lh3.googleusercontent.com/B42Un1GiLITNC1MUMbYKaxvgCSyIWmIJP2OIyCREgvWkauXMJvR19KWkQMCP0CQjQLFj_GBK5Qe9P_ccrhoQkMU=s640
or if you want something newer, a 2016+ Silverado. The LS trim has a "Custom" package with the V8, 4WD, body colored bumpers, 20" wheels, and that's about it. That's all I would really want, YMMV. It's a really good looking truck for the money.....