Hierarchical? Yes, we need administrators, managers, planners, and other forms of necessary hierarchy as we continue to work towards more complex production at larger and larger scales. Even Anarchists concede this point.
Authoritarian? What constitutes "authoritarianism," any hierarchy? If you oppose all hierarchy, it sounds like you disagree with even mainstream Anarchism, and seek to return to more tribal modes of production, scavenging and whatnot.
Grown "from the bottom-up?" Yes, Marxism has historically been accomplished by Proletarian revolution and organization, it hasn't succeeded from tiny terrorist cells throwing coups. Mass worker movements are what achieved Socialism.
A "strong-man" making all of the decisions? No, and that's not how AES states actually existed. Nobody argues for such a method, if that's a euphamism for full public ownership of property, I ask why you separate the people from the government at that point.
As for the idea of an "authoritarian state with a monopoly on violence," I don't know what you specifically mean here. That sounds to me like all states, sans the as-yet undefined "authoritarian" bent. AES is democratic, so there must be something you don't like but haven't defined yet. Furthermore, trying to "design" a perfect society is Utopianism, and doesn't actually focus on how to build Socialism from where we are.
Markets aren't evil, correct, at low levels of development they are highly useful. However, the goal is full Public Ownership, as Central Planning becomes far more efficient at higher levels of development. A system of "worker coops" would inevitably work towards either a regression into Capitalism or centralization into Socialism, a problem shown and worked out in Anti-Dühring by Engels.
Overall, I think you owe it to yourself to read more historical accounts of AES and how they function, Blackshirts and Reds as I linked earlier is a good start.