We had dinner at both in August. That was our third dinner at Kona and our first visit to the Wave.
Food was better at the Wave. All in my family were happy. I know I'm in the minority here, but I think Kona has slipped in the last two years. It was one of our favorites in 2006, pretty good in 2007, and disappointing on all levels (food and service) in 2008.
We also had some service issues with the Wave, but that's because the server was bad--and again, the food there was good. I really liked the desserts, too.