Definitely don't want to start my truck is better than your truck post. Beginning to look at 2022/2023 dually F350 or F450 and the GM 3500. Long box, 4x4, diesels in Lariat or King Ranch and High ...
I chose whatever seat my wife likes best. Being shorter, she prefers the shorter bottom so that it does not hit the back of her legs past her knees.
As for heated seats, if you do not find a truck that is already built today, there will be no heated seats in the GM HD trucks until the chip issue is resolved.