Someone voting for a party that is not eliminated is effectively saying:
Here's how Av works...
Person whose preferred winner is never eliminated:
My first preference is that my vote goes to Funny Juggler
at Round 2. Funny Juggler hasn't lost the first round, the election has not produced a winner, so I would still like my vote to go to Funny Juggler
at Round 3. Funny Juggler is still in! go juggler! I would still like my vote to go to Funny Juggler
at Last round: The election has not produced a winner, Funny Juggler
is one of the two stongest candidates and I would still like my vote to go to Funny Juggler.
Someone voting for a party that is eliminated in the second round, who had expressed a second preference is saying:
My first preference is that my vote goes to Surprisingly Good Singer. when votes are counted:
at Round 2: Surprisingly Good Singer hasn't lost but the election has not produced a winner, so I would still like my vote to go to Surprisingly Good Singer
at Round 3: Surprisingly Good Singer has lost! she has been eliminated, but there is still no winner, because its not the final, so I can't vote for her in this round or later rounds. Because I can't vote for Surprisingly Good Singer, so I would like my vote to go to Dance Toupe from South London.
at last round - Dance Toupe from South London is in the final! One of the strongest candidates!!! I would still like my vote to be with Dance Toupe from South London!
That is a much fairer system than first past the post because it means that someone can say 'I would really like Dance Toupe from South London' until that troupe are eliminated, then their vote is switched when the 'final' is announced.
This happens in so many sports, talent shows, etc (especially ones where simon cowell is involved) because elimination voting gets the biggest crowd behind each candidate which is what politics should be about.