Ok, here goes. The Kwak is the meanest of them all, wild power everywhere, extremely small, all in all a bit too much for the street. Way too much actually. As an option a tank for your brain can be fitted for after the accident (for the ALLCAPS types).
The Honda is the most planted, but it doesn't feel half as fast, even though you may actually go fastest on it. It's ugly though, not very comfortable, even relatively speaking, and it has a bad gearbox.
The GSXR is the most suitable for the street, most useable power and it's actually the most comfortable as well (relatively speaking), but it's last year's news and ugly too.
Finally the R1. It's overstyled to a rather tasteless spaceship like contraption, but most people actually think that's good thing. It is the most rounded package. Needs to be revved though, relatively speaking.
All in all, there's a bit of a dichometry in the four bikes. One the one hand we have the R1 and the GSXR which are clearly more comfortable than the other two. Yet the GSXR and the CBRRR are the most userfriendly on the street, the GSXR has the most useful torque, the CBRR is the most planted bike.
Conclusion: none of these bikes even remotely appeal to me.
Some random objections:
1. You can't even legally run any of them through the first gear on the street, let alone the other five
2. You need a chiropractor on the passenger seat to make rides of longer than 30 minutes possible
3. Realistically, no one would ever want to be your passenger (chiropractors aren't crazy, what were you thinking)
If you have get one of them, get the ZX10R, at least it has the highest poser value and it looks better than the others.