BTW Sydney (the comparison which is being made in this debate is Australia) ranks 40th in yearly traffic movements...yet is inside the top 30 for passengers and processes nearly 3 million more a year than Pearson. SACL must be loving it!
Sydney moves more passengers because they move more long range widebodies, whereas a large percentage of movements at YYZ are aircraft with less than 120 seats that are on shorter flights to domestic and US destinations. The Aussies also don't have any neighbouring countries that they can easily drive to when they travel. We've got the USA right next door with lots of great places to visit on holiday.