An AV ballot might look almost exactly like a PV ballot.
Approval voting provides a better measure of popular opinion.
Because AV allows voters more room to express their opinion, the election results provide a much clearer picture of voter preference among candidates, especially when third parties are involved. Approval voting allows voters to vote honestly. Also, approval voting, by its nature, makes it difficult to vote against a candidate, reducing the effectiveness of negative campaigning. Approval voting is intuitive and practical. Unlike some other alternative voting methods, AV is straightforward and easy to explain.