Personally, I like going to a little plot of land off Dixie road, basically the opposite end of that same runway by the Boeing plant. When they are landing by there, you get great views. Other than that, it really is getting more and more difficult to watch the airplanes take off and land.
It used to be great when I worked at Threshold Aviation, and we had a beautiful view of the runways, but they've since moved, and the view is gone.
Oh, and with T1 going down too, there's another great place that is going to disappear. I guess the days of airplane spotting at YYZ are coming to an end
"it's kind of like an Airbus, it's an engineering marvel, but there's no sense of passion" -- J. Clarkson re: Coxster