Sushi Ota in Zagat's America top 25 for 2013
Wow, I'm absolutely amazed that Sushi Ota somehow made it into the Zagat top 25:
(check out #20)
Moreover, the sushi in that photo looks inedible. I guess they got the rushed service and other negative aspects correct though in the comments section (but I still don't know how the service can be rated 21)
Zagat, like any survey site (Yelp, UrbanSpoon or a local newspaper's "best" list) is only as good as the data they get in. Kaito has 3 Zagat reviews vs Sushi Ota's 565 reviews. While Kaito does better on Yelp, 202 reviews vs Ota's 1376, Ota is still the more well known and popular.
The rating is based on getting the highest ratings in food, decor, service & cost. That means there may be restaurants with higher rated food (Addison?), but they get knocked down because of cost or something else. A great place like Shimbashi Izakaya may not have ANY votes because no one has ever added it to a site like Zagat.
Any of the food sites, Chow included, are fun for stimulating conversations, but it isn't like any of them have real answers as to what the "best" or "top" anything is.