My fav residential street is High Park Avenue. Terminates at High Park on one end and dundas in the junction at the other. Great mix of rental towers, condo towers, community housing, mansions, and and rental units that is rare to find all on one street. The lots are also huge and have a huge arcade of trees to go along with it.
My fav commercial strip is dundas in little portugal, between landsdowne and ossington. Because of the angle, there is an amazing terminal view of the downtown skyline when walking east. The retail stock is quintessentially toronto for me and it's what queen west looked like 15 years ago and is becoming more and more rare.