I'm from YYZ and suppose I was a bit spoiled to have that as my homebase. Been living in YVR for a couple years and always find myself a bit disappointed when I look at the options for single-leg trips to have a quick spontaneous vacation.
Whereas from YYZ there were tons of options throughout Europe, the Caribbean, and Central & South America, from YVR when looking at single leg trips the destinations are so limited
A few spots in Mexico, Hawaii, a couple long flights to major European cities, and East Asia. Admittedly YVR is far better for getting to Asian and Oceania, though these are still long journeys. I remember looking at flights to Costa Rica and I couldn't fly direct, lots of the options required flying to YYZ first and were ~20 hours!
Hoping to reduce my working hours and travel lots in the next few years, and I'm contemplating a move back to Toronto for the better travel options.