Shabu shabu has been one of the well know Japanese cuisines in the US. My most favorite type of shabu shabu is Agu buta or Agu pork from Okinawa. They really melt on your tongue. Yes, they are fatty :) Mmmmm.
Winter in Tokyo is not my favorite, especially when you have to wear heels in wind gusts. However, the food is amazing there in the winter. That really helps me tolerate the wind!