If America used Australia’s voting system, there’s no way Trump could win
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That may seem unfair to Guest; he did get the most votes, after all. But would it be any fairer if a seat where more than half the votes were cast for progressive candidates ended up with a conservative representative, just because of how the left-wing vote was split? Preferential voting lets people vote for their first choice—even if that’s for a minor or independent party—without worrying that their vote will be locked out by a system that effectively only counts votes for major-party candidates. This election, it meant that the 22% of Australians who voted for minor parties and independent candidates still got a say in the final result.
Applying this voting method to other countries’ systems would yield some dramatic, history-altering results. For example, if the US had preferential voting in 2000, Al Gore would have likely waltzed into the Oval Office thanks to the second-preference votes of most of the 2.8 million people .. http://edition.cnn.com/2013/03/08/us/ralph-nader-fast-facts/ .. who voted for his left-wing US Green party rival, Ralph Nader. And if Bernie Sanders ran as a presidential candidate in November, he wouldn’t split the Democratic vote with Hilary Clinton, and the White House would be much less likely handed to Donald Trump.
In-toto it's so much simpler, there is more participation in the actual voting process and much less voter fatigue as you don't have a federal election campaign, et al, going on for more than about six weeks for the general electorate.
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