Dear people commissioning polls in preferential elections
(like the Wellington mayoral race),
please take a lead from Australian pollsters, who have gotten used to polling in elections which use preferential voting, and ask people which of the 'serious' candidates they will rank higher. Don't just ask people who their first preference is.
If you do this, your poll may actually have a chance of predicting something useful.
Also, don't only 'poll' your readers!