The new Cycle World magazine, for May, compares the Z650 against the SV650 Suzuki and the FZ-07 Yamaha, with the Yamaha their winner. The Kawi has the lowest seat height, and is fastest in the mid-range acceleration contests from 40-60 and 60-80 mph. And the Kawi had the best braking distances. They didn't like the vibration, awkward ergonomics (?), and the least horsepower and torque of the 3.
Oh well.