I know that Lexus is better quality wise, but it is kinda boring to drive, compared to BMW. I drove couple of miles in X3 and was sold I don't know if it was stupid to thing to do, to prefer BMW over Lexus - time will tell
No not stupid at all. If thats the car you liked then thats fine. They're totally different the RX3oo and the X3. The RX series is probably one of the least "sporty" mid-size SUV out there (drive wise). Thats not its target. Its target is comfort and quiteness. People who prefer a tighter , more responsive drive generally don't liek the RX300 and vice-versa, its all just about what you want.
Thanks. Thats pretty much what i was thinking :)