+1 on that it is all about the rider.It depends on the riders and the venue.
Like Dennis said above, There is not enough of a difference to be able to call it a Busa killer, and this year they are gettingOne magazine did a shootout between the two bikes. The best of 3 on the 1/4 mile. The first race was won by decisively the ZX. The second decisively by the Busa. The third race was won by hundredth of a second by the ZX. The magazine did a huge writeup about the ZX being the Busa killer and dominating the strip. So, you can't believe the hype in print.