[AndroidRobot]

'better choice' depends on what you're wanting from the X5. If you prefer the smoothest ride an air suspension will be the choice. On the other hand for sportiness the DHP is a must because of the anti roll stabilization and active dampers.

Audi had both an air suspension + active dampers which gives a nice ride but no anti-roll bars meant it still had some roll in the corners.

Since the X5 is heavier with a higher CoG it still want to lean more. I prefer whatever trivial agility I can get in an SAV for when you want things to be more fun.

I drove an X5 on air and is rode smoothy, body roll was still noticable but much better than the other older F15. Based on this I assume the DHP will be great (none were available for me to test) therefore that's what I got.