I've been here at least 20 times and I always get the same thing - Karamiso Ramen with less salt and Pork Jowl with an egg. It's a tad expensive but it's well worth it. Do not cheap out and pass on the egg. It's soft boiled to perfection and tastes like egg ice cream.
Don't even think about going to momofuku, sansotei, kenzo or kinton. The only other place I will have ramen in Toronto other than Santouka is at home.
Tip: go before 1130 if you want to beat the lunch rush. Also don't order the corn it's literally Del Monte canned corn.