Roy Morgan hasn’t let itself be put off by the flak it copped with last week’s small-sample poll results from the four inner-city Labor-versus-Greens contests, repeating the exercise with only a slightly larger sample of 327 respondents. Taken together they show Labor leading the Greens 53-47, which is seven points better for Labor than last week’s poll. All told this points to a 3 per cent swing to the Greens compared with 2006, which if uniform would just tip Labor out in Melbourne, but leave them safe in Richmond, Brunswick and Northcote. This is indeed borne out by the seat-by-seat breakdowns, which have it at 50-50 in Melbourne, 57-43 in Richmond, 52-48 in Brunswick and 52.5-47.5 in Northcote. The margin of error on the combined result is approaching 5.5 per cent.

UPDATE: Now Morgan offers a spiffy video display of “worm”-style Reactor responses to various election ads. It finds Coalition voters were far more positive about their own side’s advertising than were Labor’s, but that Labor appeared to offer both the most (attacking Liberal spending plans) and least (the famous Baillieu Knight Frank ad) effective attack ads. Labor also did pretty well among independents and Greens with a humanised John Brumby’s fireside chat on the economy. Labor’s “meerkat” and the Liberals’ “are we there yet” attack ads failed to impress Greens and independents in roughly equal measure, but the Liberals did better with their “mouldy fruit” ad. The Greens ad, once it began laying on the hard sell, found Labor voters responding barely less positively than to ads from their own side, while Coalition and independent voters headed south.