Re: the suggestion that AV will allow extremists in.
From what I can make out, the ONLY party to have come out 100% against AV is the BNP. Mind you, I haven't checked the Socialist Workers Party site to check their position. All the mainn parties - and even some of the parties you would expect to be solidly in favour have some degree of disagreement. In a recent Channel 4 interview, BNP Deputy Chairman Simon Darby said this:
"We are never going to get our feet under the table under the AV system."