Sushi is better in Vancouver, it's closer to fresh fish.
We're probably a good choice for Chinese but the best isn't in Toronto proper, it's in Markham.
Apparently we're the capital for pizza (although it's mainly shit) and doughnuts.
I would say that we are the best place perhaps in the world for variety of ethnic foods and good places from cheap to expensive. So a typical out of town gourmand can have an english breakfast, Salvadoren Carne Asada or tacos for lunch, and high-end chinese at dinner one day, then wake up the next day and have a top-notch pastry and espresso for breakfast, Indian buffet at lunch and a some great french food for dinner, etc... and not run out of different choices for quite a while. (Vietnamese, Ethiopian, Morroccan, Turkish, Greek, Japanese, Persian, Hakka Chinese, Mexican, Brazilian, Argentinean, Tibetan, Middle Eastern, so many choices.)
None of this is "Toronto" food, at least not historically, but in a way it is all Toronto food.