Many moons ago, I was an off road driving instructor in the Lake District, with a company that is no more.(Unfortunately)
I have done most, if not all types of offroading for work and pleasure, I still off road for pleasure. (when the kids let me)
In my opinion the most important things on an of road vehicle are the tyres, ground clearance and the driver.
I have tried all most all the off road vehicles on the market, not all, in the extreme situations that i have put 90's or 110 's through though.
I did miltary testing for Torsen differentials, I trained most of the utility companies