Santouka is awesome, we actually hit them up for dinner tonight. Seemed fitting for the weather today. The Toroniku ramen (pork jowl) with shio broth is the bomb.
SANTOUKA is good, better than most of the ramen places that i've tried, but i do not think it is as good as SENSOTEI, which is just a few blocks west, at dundas & chestnut.