http://www.ey.com/CA/en/Services/Tax/Tax-Calculators-2012-Personal-Tax
While someone already pointed it out, I prefer this site as it allows you to pin-point almost exactly where Albertans actually pay less (over 125,000ish) up until then BC is a lower income tax prov.
Good thing I make over $125K/yr and have for the last 6 years. Most trades people I know make over that a year in AB. It's not hard when you want to work for a living.
Opportunities suck don't they. :)