Well put CryticX. I also say that A republic is the best of the given choices.
I would have gone with socialist if I did not already know that the human factor in the government would ruin it. For evidence that a socialist system would not work look at the former USSR. The idea was sound. But those in office quickly became corrupt with the authority given to them. The same happened in China, North Vietnam, and North Korea. If we could remove the need for people to run the government than a socialist society would work perfectly.
It really is to bad that people are so easily corrupted by power.......