I have owned one, raced two and ridden 3 generation's of Honda's CBR model and can only add to what most people are saying.
The Honda is bomb-proof!
If that is not enough, I read an article in Sport Rider magazine where a rider rode his CBR 900 RR for over 100, 000 miles, with the only maintenance being oil and filter changes, etc.
The Kawasaki ZXR-750 is an awesome machine but for reliability and rideability, my pick would be the CBR.
Btw, here are pics of my '99 900 RR with a friend's ZX-7.