The problem here is that you have 3 floors and 25 places all serving the same thing. Don't let the decision making ruin the experience, just pick one and commit. Our pick turned out to be good and I'm sure that most are. The way I found the place was by using the large Parco department store. It's just a block or so South of Parco, look for the sign in the pics that sticks out. Fun experience. We split one with a couple beers and you would need to be pretty hungry to eat a whole one but most people seemed to be getting one each. Okonomiyaki is a bit strange in taste but something you should try. We happen to love cabbage.