My dream is that I hope to see the emergence of a viable minarchist or anarchist society (beyond Mennonite and kibbutzim arrangements). Thus far the closest was a brief period of Catalonian history amidst a civil war.
They originated more out of necessity than out of ideology (not to say that it didn't play a big part in it) as the lack of resources of the early Jewish settlers and the overall lack of development of most of the land pretty much mandated it.
I still have yet to see a viable example of a large scale communist society and I do not think one exists, communism eventually dwindles down to planned economics which pretty much kill everything. Even if you do get to the point where scarcity especially of all basic goods is non-existent at best you'll end up with Star Trek like meritocracy, and considering that scarcity would always exists at some point regardless of technological advancement I'm not even sure how much of that is achievable.
So you can clothe, feed, and keep your entire population healthy with ease using technology that's great, but as you became that advanced you also want to do other things and one thing would always hold true you will have limited resources even if your only bottleneck is time and the production capacity of your replicators which is also why I think Star Trek is pretty much a pipe dream. Eventually you'll have to decide if you want to produce food or built another Enterprise and if it's not your own family who's going to be left hungry you'll more likely than not choose to make another Enterprise than to provide blankets to the folks on the 3rd moon of Endor (and yes i know exactly what i did there ;)).
http://mobile.nytimes.com/2015/11/29/magazine/a-dream-of-uto...
Same here, but I'm not very optimistic right this minute.
If you really think you have a model, go and see if you can implement it. If your model requires revolution, wide agreement with everyone or some such, it's probably not relevant as a model.
Because, the other side said: "we will win the war and then decide what to build". That's why I even struggle name them, other than "white" (as opposed to communist "red").
A more interesting counterfactual would have been Menshevik victory.
It was a wide coalition of monarchists, republicans, orthdox priests and military. Their only common ground was perhaps dislike and fear of reds (and that turned out very justified).
Getting wildly OT now but the atrocities and systematic killings performed by the Nationalists absolutely dwarfed the isolated killings on the Republican side, perhaps by a factor of ten to one.
(Wait, are we still talking about "communists and anarchists" in general, or is it just the Spanish Civil War now?)