The Cayenne is the least SUV-like, but somehow I think that that's a bad thing... in person, it seems extremely small, and it has no statesman-like stance.
It's interior, while extremely beautiful, feels a bit awkward when you're actually sitting inside it; the air vents and shape of the interior is extremely large and heavy-feeling, while its steering wheel and buttons are disproportionately small.
However, there's no denying that it is gorgeous and has a presence like no other SUV, so for that reason, my order is this:
1. M-Class
(2. Volkswagen Touareg - Although it is underpowered and only a VW, its interior has a stunning warmth, similar to that of Mercedes of the older generations. It is seriously good-looking on the outside as well.)
3. Cayenne
4. X5
5. Q7