You are going to think this answer is flippant, but my favorite place to rent cars is Zipcar. Of course, you have to be a member, which probably doesn't make sense unless you travel a lot to their cities or you live in one of their cities.

Toronto is one of their cities.


The daily rates seem exhorbitant (around $75/day), until you realize that insurance, gas, mileage, taxes, and everything is included. Also, I have enjoyed walking past lines of people waiting at Avis for all that paperwork, walking up to my Zipcar, putting my card in the window and "beep!" I'm in and ready to drive.