Wow...is this thread still alive????
Comparing the ZX and the Busa is kinda pointless performance wise as it all comes down to the pilot at this point as they are so close. Suzuki riders love the Busa and Kawi riders love the 14.....everybody is happy. The King isn't as quick or fast as either from every review and report I have read but it is still a very cool bike that I would love to add to my stable.
Racing is a skill whether it is on the track, strip or street and a great rider on a good ride will beat a good rider on a great ride every time. Not that I endorse it but if you ever watch a few episodes of PINKS you will see what I mean.