Roz said:

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I assume you are a Labour supporter, Roz. It appears that Labouir would have done better under AV than under FPTP in all elections from 1997-2010, although admittedly there is some evidence that the Tories would do better under FPTP if an election were held now. See here. In the longer run, who knows? I still think it's best to consider the case rationally - if you can wean yourself from your taste for 'warfare, terror and bloodshed'! - and on its merits.