No state is or could be perfect - all human institutions are flawed especially in a flawed world, but I think Cuba comes closest to a model of socialism that makes sense and works.
No, they don't. The Scandinavian states are as much egalitarian but more democratic. Besides there is no such censorship and stupid propaganda as in Cuba. But this discussion is irrelevant because neither state can be truly socialist.
"Property is theft."
Pierre-Joseph Proudhon
"the system of wage labor is a system of slavery"
Karl Heinrich Marx