The CBR600F assuming you mean the new one, is not a sports bike, its a Hornet with fairings basically
The CBR600RR is ok but its got no low down power so nothing happens until 8000rpm and above by which time you are doing silly speeds, same for the R6, both are fine if u are on a track and ringing their necks.
The Gixxer is so out of date now, not for me at all
The ZX12 and S1000RR are too much for the road, not useable at all...........
The grunt that the triple engine in mine gives me the best of both worlds, 170mph but enough torque that at 30mph in 6th she'll still pull............
trust me mate, i rode the other first then got on the Daytona and that was that, i had to have her
