This is an "instant runoff" poll, allowing voters to
conveniently find a strongly supported winner from among many candidates,
with minimal worries about "wasting" votes on weak candidates or
"splitting" votes between similar candidates.
It improves upon the "most votes wins" method, where:
- if there are more
than two candidates, someone can win even though most voters don't like
that candidate
- voting for your favorite
candidate often helps your least favorite candidate win
- If there are
two similar candidates, even if one is much less popular than the
other, they can "split" the vote so that neither can win.
With instant
runoffs, these problems practically never occur.
It improves upon the two-round runoff election, where everyone has to go
in and vote twice - often, the inconvenience of the second election
results in very low participation. Two-round runoffs can have the same
problems as "most votes wins" when there are more than three
candidates, but instant runoffs work well for any number of candidates.