I'm mostly an anarchist. But.
I think that there needs to be some degree of authoritarian, arbitrary power. Mostly because I've been in anarchist groups in the past, and when everyone has input into a decision, shit gets bogged down really fast. Not everyone understands a given issue and will be able to make an informed choice, and letting opinionated-and-ignorant people make choices that affect the whole group is... Not good.
The problem is, I don't know how to balance these competing interests, or exactly where authoritarian power should stop. It's easy to say, well, I should get to make choices about myself, but what about when those individual choices end up impacting other people? For instance, I eat meat, and yet I'm also aware that the cattle industry is a significant source of CO2; my choice, in that case, contributes to climate change, which affects everyone. ...And once you start going down that path, it's really easy to arrive at totalitarianism as the solution.
I also don't know how to handle the issue of trade and commerce, and at what point it crosses the line into capitalism.