I'm not sure what kind of answers you'll get in a Porsche Cayenne Forum but I make a start:
Cayenne Turbo of course. Why? Because it needs only 20.2 seconds from 0-125 mph, because it handles like a sporty limousine, because it fits my whole family including luggage, because it is a Porsche, because I like the interior very much, because the 4WD system is top class, because PASM is a great thing to have on a SUV and because it runs at almost 170 mph without a problem.
I don't like how it looks, I don't like fuel consumption but I can live with that.