I have been riding a 94 cbr 600 for the last year or so, and I really want to buy a newer 600 sometime before summer. The bike I have is pretty old, the previous owner laid it down a couple times, and I think that I should move to a newer bike. Which 600cc sport bike do you think I should get and why?

Honda
Kawasaki
Yamaha
Suzuki

Those are the only ones I am looking at, and it will either be an 05 or 06. I am kind of leaning towards the Kawasaki ZX-6R ir 6RR, but I dont know. Any help is appreciated