The problem is some only realistically face Tory opponents - which is another reason why we need AV. So people can vote against the coalition and its policies without handing seats directly to the Tories.
well what will happen to those lost LD votes in the SW? They will stay at home or go to losing candidates. Either way the Tories sweep the board and are on their way to a majority. If we don't get AV it's harder to kick out the coalition parties, and there is a huge argument against left candidates standing elsewhere as they will "split the Labour vote". This is why we need AV. And why left unions like PCS will be backing a YES vote.
How when Cameron has argued publically and vehemently against?But people will see a yes vote as an endorsement of the coalition though.