The Globe and Mail has an interesting tool to help you decide whom to vote for.

The only problem with this tool is that each choice represents one party's entire platform on the issue, so it contains several different policy items. When I was doing the quiz, I found that in each platform I agreed with some policy items and disagreed with others. Because of the way the quiz is designed, I had to choose only one platform, even if I disagreed with some of the items therein.

It would better serve the voters if each policy item was listed separately, and you could mark each item as "Agree", "Disagree", "Neutral", "Deal-breaker" or "Deal-maker". Each party would get plus one point for agree and minus one for disagree. Parties that earn a "deal-breaker" are eliminated (unless all parties earn one) and parties that earn a "deal-maker" get your vote (unless more than one party earns one, in which case the number of points will be used to decide). At the end of the quiz you'd see which party deserves your vote, as well as how each party scored on each issue.