Pros
- With the top-up list, voters can either select their favourite party or choose their favourite candidate from the top-up list and the votes are then allocated to represent each party’s share of the votes proportionally
Cons
- With 80% to 85% of seats elected via the Alternative Vote, there aren't enough top-up seats to make the system proportional (however a different ratio could be considered)
- AV+ is a system designed to permit single-party majority government in circumstances where one party has a high share of the vote, a decisive margin over its opponent or a high level of general consent as implied through preference transfers.
- Some expressed concern that voters may find use of two different voting systems on one ballot paper hard to understand but we have no evidence
