Personally, I choose other. The best form of government would have to be a communist anarchism. As you can imagine it's awfully hard to explain, so I encourage you to read chapter 20-24 in the following online book:
http://dwardmac.pitzer.edu/Anarchist_Archi...whatis_toc.html
Here is a quote:
"In a nutshell, then, the meaning of Communist Anarchism is this: the abolition of government, of coercive authority and all its agencies, and joint ownership-which means free and equal participation in the general work and welfare."
Shalom