are you ‘touring’ alone? if so then any sports bike will take the same fabric sports panniers so none will be better than the other I would guess?
From the magazine group tests I read (taken with a pinch of salt?) most seem to say the gsxr was better for the road with the R6/CBR more track focused…
The GSXR750 does seem the do it all bike, Suzuki Kev (K8 750) swears by his