I own a 2000 Volvo sedan and considered upgrading to the XC90. They never got me that excited until they intruduced the optional V8 this year. If you want conservative & safe, get the Volvo. If you want style & performance get the X5.
Then you would be pleased with the Volvo. They have the highest safety standards in the industry. We have been very impressed with the overall safety and quality of our car. The XC90 even more. Again, I would only consider the new optional V8.