What's the most boring party in the world?

[I spent the winter writing songs about getting better]

I have to go with the Australian Labour Party. Textbook case of bland and generic center-left policies. I remember Boris describing them as tied with the Canadian Conservatives for the least rhetorically entertaining party in the world, but the Canadian Conservatives have enough crazies to provide some entertainment value. I would probably go with one of the Scandinavian conservative parties for an example of the most boring center-right party in the world.

That's not to say that internal politics of the ALP and some of their leadership shuffles haven't been interesting or entertaining, this is referring mostly to rhetoric and ideology. ALP are also kind of notable in that it's hard to be a true devoted hack for them but also to really hate them.

[I spent the winter writing songs about getting better]

The IP are basically just a ballot line now, and have been used as a vehicle for both far-right and far-left candidates. That factoid alone excludes them.