Personally, I favour ranked ballot, because it permits a  voter to express their choice, but also name the most desirable alternative if #1 doesn't make it. It forces all candidates to seriously engage with the electorate. And in this sense, all votes count. Another benefit is that it is a step towards a PR system, but can easily be reversed without trouble if it doesn't catch on. 

Poor Minister Monsef has been hung out to dry on this one.