[Nathan]

I'm rather skeptical about people who say natto is their favorite. Its an acquired taste to be sure, cheap and healthy, but there are far better flavors in Japanese cuisine than natto. I used to have it for breakfast, its not bad, but not the best.

My personal favorite would be a tie between takoyaki and a good miso soup.

My least would have to be いくら(ikura, fish egg) sushi. I could never get past the texture of it.