The RX is a women's car in my opinion. Look who's driving them on the road. I've driven several through the years when I take my LS in for service. This is my 5th Lexus. The RX does have a soft ride and is boring. I drove a 5 series 528xi as a loaner and I prefer the X5 over the 5 series sedan. The MDX has such an ugly front end. I also looked over these same vehicles while waiitng two years for the diesel X5. Good luck with your decision. Lexus will also have a new GX SUV out this fall. I couldn't wait that long. I needed to replace my old SUV. I'm sure the GX won't have the fuel economy of the diesel X5...

Craig