^ IMO the E70 design is the most modern-looking of all SUVs available on the market. Styling was very important to me and I would not have jumped on the E53 if that was still being sold as the current X5 model. Maybe you're knocking all SUVs as stone age...
I think the problem with the X6 is that the styling/design is in-between what we know as purposeful. This is not to say it is plain ugly... just a
really. Even if good looks is in the eye of the beholder, I'm not sure what you can really do with it from a utility standpoint. If you want it to be fast, why make it so large - they are compensating by throwing the latest engineering/technology at it but they created the problem for themselves. If you want it practical, why so little room (passenger max of 4 as well as cargo)? Everyone knows these arguments by now. The only thing I can give it credit for is being "different"... think outside the box, pioneering, right? Good for BMW, but as a buyer... again...
You'd have to ask yourself why you bought an X6 over something like a 5-series (bear in mind the X5 will get DPC too)... it's probably just to be different (which really I have no problem with either).