The fact that Kokoro could be considered the best of *anything* makes me doubt the validity of this entire list. I've been there once, and it was literally one of the worst meals of my life. Their "tempura" is a greasy lump of something shredded and fried - honestly, I'm pretty sure it was hash-browns. Whatever it was, it was beyond disgusting. And so was the rest of the food. No redeeming qualities whatsoever, except for maybe the prices (but really, paying dirt-cheap prices for inedible crap is not what I'd call a good deal).
