I don't dispute the Jeep capability for one second.
Like I said...the majority of owners who purchase a Land Rover or Range Rover or Cayenne or LX470 or whatever luxury SUV out there is not going to be putting it through it's paces on the Rubicon Trail. For that matter, I would also go as far as saying that the Grand Cherokee and Liberty's that are purchased see about as much off roading as my MDX does. These 'offroaders' stay onroad most of their lives and for that, I would say that their superior 4wd system and ground clearance and low range gearing is a waste of technology for their owners. It'll never be used and what they are faced with, a snowy hilly street or 6 inches of snow can be tacked with a CRV, Forester, or heck, a Civic could get through it. So with that said, I would say that an SUV geared for onroad comfort will win in the eyes of consumers in most situations. Lexus sells a ton of their SUV's. They are comfortable and stylish and have the right logo. Their owners could give a rat's ass about how it's rock crawling capabilities are.
Sure the CJ and Defender are great offroaders, but they really are purpose built for that. I would guess that 90% of the sport utes out there are sold not on their capability, but by their luxury items and how many oohs and ahhs they can get.
So in summary, what I am saying is that you can't say a Jeep can take the place of a Land/Range Rover. For the consumers nowadays, they just aren't comprarable. Sure they both are capable offroad, but they aren't in the same class. The Jeep name holds nothing in the face of brand name imagery.