At their peaks, Alberta was definitely running higher per capita case counts than Ontario. I think there were even a couple days where even in raw numbers Alberta was ahead for new cases, despite having like 1/3 or 1/4 of the population.
Alberta has seen better numbers since the post-Christmas lockdowns, so I think we might be doing a little better per capita now than Ontario is.
Found a site:
https://www.ctvnews.ca/health/coronavirus/tracking-every-case-of-covid-19-in-canada-1.4852102
At the peak, Alberta hit about 40 cases/100k people, whereas Ontario never really cracked 25 in any 7-day average. Alberta has gotten down below 10/100k now, whereas Ontario is still around 12. Quebec peaked at 30, and is now at about 15. None of the maritimes have even reached 5/100k, and have barely peaked above 3/100k.