This is a dumb comparison, one is a dedicated supersport the other is a middleweight pseudosportbike, they are bikes designed for different purposes and the big difference will come with the handling and riding positions given by the different geometry of the bikes, they just dont compete with eachother so this comparison is pointless, compare the daytona 660 with the cbr650r or an r7 and compare the 600rr with any of the other 600s or the daytona 675