yup, good old grapevine!! :P
ok. back to topic. If i did have both RX and GX, it wouldn't make a difference on which one i should bring. It all depends if i have a lot of luggage, then it's the GX. If it's a travel lite trip, I'd use an RX (especially now that the gas prices are so freaking high! ) .
Power, is about the same between my RX300 and my GX470. About the same power with the 330 also (when i used the loaner). The Gx is a lot heavier, so the higher torque compensated that resulting in the same 0-60mph stats between the two. I do like the 5-speed instead of the 4 speed of my RX300. Although, after trying at least 10 loaner RX330s, I think the RX330 is a little bit sluggish at times. But hey, if you've never tried Lexus before, I'd be happy with an RX!
Another reason why I'd take an RX to a trip (just found out after I got my GX).
1. RX is more handy in big cities, especially if the place is crowded.
2. It's harder to stop the GX, considering that the GX is obviously larger and heavier, which means more pads over the long run(my 30k check-up i just had the other day told me that it's almost time for new pads <_< ).
But my only con about my RX300:
1. Eats up more tire thread than the GX??? (well maybe because I originally had Goodyear Integritys on the RX).
I had to change the tires of the RX at 25k (because it was more than half done). But unlike my GX, I already have 30k on it, and my service rep told me I still have 10/11 left (but the reason could be that I got Michelin Cross Terrains on it originally) !!!!