Yes about policies.We were once told that you vote for a party on policies.But policies can be changed or disregarded overnight.Instead (thanks to Wayne's articulation) perhaps we should vote on ideology or long-term commitment.These commitments can be demonstrated by past actions or performance.Commitments to equality,education,health etc. This equality should apply,for example, to health and education,and with, if needs be a bias toward those that are disadvantaged or deprived.