That spiral flag is ugly as hell. The only way I could see people going for it, is if it hypnotizes those looking at it.
It's a good thing that the first referendum will use preferential voting (although a Condorcet method would have been preferable to the instant-runoff voting being used here).
A matter of taste. I would vote for it (although none of these options are great).
I wish they had used the brighter blue on the red/blue fern flag. As it is the black/white fern flag is the best of the fern flags. The blue/black fern is hideous.