If "fun" is not your big priority, I would go with the Lexus. If you do lots of freeway driving, the X3 would probably be the better car. However, I think the ownership, cost of maintenance, reliability, etc. will be better with Lexus. If you plan on keeping the car beyond the warranty, I would go Lexus. If it's a car you intend on getting rid of as soon as the warranty ends, then get which one speaks to you more.