I am trying to choose the best birth control pill to start on, and
would like to compare the advantages/disadvantages of the most popular
birth control pills available in Canada. For example, some are known
to cause weight gain, others not so much but have depression
side-effects instead, etc etc...

It would be great if you could find me a resource that has this in
table form for easy comparison.

This article contains (near the bottom of the page) a comparison of
several brands of oral contraceptives:

http://www.healthywomen.org/content.cfm?L1=3&L2=112