There are pros and cons to each place. Depends on personality, I think.
Saskatchewan:
Cheaper rentals, cheaper car insurance, bus pass (80$/month), immediate Health Card (They issue immediately after you reside in the province), easier Driver's license test, extremely cold (windchill of -30 to -50 is very frequent in SK), small boring city, no events, mostly farming, no traffic
GTA:
Expensive rentals, expensive car insurance (could be double than SK if you are a new driver), expensive bus pass (140$/month), 3 months waiting for the Health Card, difficult procedure for full driver's license, warmer weather with more snow compared to SK, big city, lots of events and fun activities, lots of traffic.
Hope it helps