Dude your comparing two bikes with two different riders, and I know from experience that a 1000 bike in every aspect takes more finess to ride. My girlfriend has a 07 600 and its nothing but horsepower and no torque hence why its easier to drag race and roadrace. Even with full bolt ons that 600 might make 120hp and maybe more with a motor build, with a slip on my girlfriends made 108hp and 43.21 FT/lbs but on 04-05 CBR1000rr makes around 145 stock and 75ish FT/lbs and those are down on pwer compared to the 06-07 models. So I would say that on just torque alone the CBR is harder to ride having double the torque and almost the same weight, even if it were the same two bikes every rider isnt as fast as the next. Just because someone rides a bigger bike doesnt mean they are better rider.
I mean ride whats comfortable but you are getting fairly defensive about someone suggesting getting a bigger bike.