Ive never ridden a 1000RR before have sat on them a number of times, and for a liter, balls out, sportbike, they were quite comfortable to me (im 5'7")
The ZX10 and gixxer1000 are very aggressive in terms of speed,torque, style and ergos in general. The 1000RR cant really be compared to other liter bikes in its class, simply because, while Honda has made leaps and bound strides w/ the new redesigned 600RR and 1000RR, they are still in the Honda tradition of power, speed and agility, with real world style ergos. in other words, it's not quite as aggressive as the R1, ZX10 or Gixxer.
For my money though, I really like the 1000RR, she would treat you well, and have more than enough power to keep your pulse racing.
Sounds like you have your head on straight when choosing a new bike, especially a liter bike...they are a blast to ride, as long as you are capable of handling the power.
BTW..welcome to TWF!!!