1. There will still be many wasted votes – even though 51% may have voted for candidate A, that means that 49% of the constituency didn’t, which is a huge number.
  2. There would still be many safe seats – the number of safe seats would still be very high and it is unlikely AV will have a significant effect on many.
  3. AV is not proportional – AV is not a PR system and will be unlikely to significantly increase the representation of smaller parties.
  4. AV is potentially more complex – voters will not vote for one person, but several.