All the political parties here have similar polices - it's a country with a social welfare system. On the margin National/ACT (blue) like to cut taxes and spend less social welfare and Labour (red)/Greens the reverse. After 3 terms with blue we had overshot, and Labour iOS having their turn at the well.
I encourage all voters to be swing voters - that way they have a chance to influence policy. There are good politicians across all parties here, and we are lucky for that.