When looking at various electoral systems, a factor which is very important to me is the answer to the question: how, exactly, did my vote count?
Systems such as alternate vote (AV) and single transferable vote (STV) may transfer all or part of your vote to your second, third or subsequent choice, depending on the overall voting results. Most of the time under these systems, voters can see that their vote transferred to either the winner or the last candidate they supported. However, there are circumstances under which it may not be clear exactly where the vote was transferred, or at least, some calculation is required to see how one’s vote was split up.
Some systems require voters to cast two separate votes. In this case, one vote is counted for one purpose and the other vote is counted for another purpose. Again, for many people, the difference between these purposes may not be clear.
With Simple MMP, you cast a single vote. Your vote gets counted twice. First, like today, your vote counts towards electing your Local MP .. the candidate who gets the highest number of votes in your riding.
Second, your vote counts in the provincial pool to determine overall party support and directly impacts how the Top-Up seats are selected. Whether your local candidate wins or loses, your vote still counts at the provincial level.
This system is completely transparent. If I voted for Ms. X from Party Y, then I know that when they list the number of votes for Ms. X that my vote is one of them; I also know that the number of votes for Party Y in my province includes my vote.
This truly makes every vote count.
It should be pointed out that the counting process itself will still be done by returning officers under the watchful eyes of scrutineers. The outcome is not dependent on running all of the votes through a computer system to determine the winner.