To answer my own question...
http://www.cbc.ca/canadavotes/candidatesri...ario/index.html
Liberals had 44.67% of the vote share in Ontario and yet won 75 out of 106 seats or 71% of the seats. If we had proportional representation implemented by province then the Liberals would only have 47 seats, not 75 in Ontario.
Looking at Alberta now...
The Conservatives had just 61.64% of the popular vote and yet won 26 of 28 seats (93%). The Liberals had 21.98% of the popular vote and yet only got 2 seats. If we had proportional representation implemented by province then the Liberals would have gotten 6 seats.
And of course that trends can be continued for each province.
But it clearly demonstrates how the current system encourages these regional powerbases and thus most of our regional problems. I found it strange in the thread on proportional representation that some people thought it would get worse with proportional representation when the idea I'm proposing does the exact opposite.
Anybody who is frustrated with Ontario's politcal dominance should be very interested in proportional representation from what I can see. Over 50% of Ontarians voted AGAINST the Liberals and yet they won 71% of Ontario's seats. There is a very obvious flaw here and once again I have to wonder why this is not a bigger issue to most Canadians.