Socialism
Socialism & Prosperity:
socialism as an economic system never has succeeded and either produces much lower prosperity or severe poverty.
Socialism & Freedom:
similarly, socialism as a political system fails and often produces dictatorship.
Socialism & economic equality:
the rulers under socialism wind up with considerable prosperity but the many are forced to live much poorer lives.
Free market capitalism & liberty:
the only system(s) that work are individual freedom (liberty) and free market capitalism.
See realitiesofsocialism.org
for an examination of the actual experiences of various countries which tried experiments with socialism.