I have the 2004 cbr 600 RR and my buddy has the 03 R6.
And i just started riding and i dont know to much about bikes and i know he does not eather but he gives me crap all the time says the R 6 is the better bike!! So what do you guys Say??
There's only one way to shut him up and you probably know how. I'd say it would come down to the rider because they're both about the same performance wise. Gain some skills and then challenge him in the twisties.
I think the R6 is more comfortable to ride on the street while the 600RR is designed to excel in the track thus with the undertail exhuast (which claims to help with aerodynamic?) and the more aggressive seating position. Personally, there's no way anyone can tell the difference between all the 600cc super sports (performance wise) unless you are good enough to race on the track. To most people it all comes down to the "look"
Seriously though ... the R6 is much more track ready out of the box. The CBR is the more "streetable" between the two. That being said ... between most riders (As in, non at least top-5 expert pro-am riders) ... you won't see a difference. They are both excellent.