It's not really an apples to apples comparison because the two aren't mutually exclusive.

Purely socialist countries are rare because most modern economies incorporate some level of market dynamics. However, some countries lean more heavily toward socialism, while others blend capitalist and socialist elements. Here are examples of both types:

Countries that Lean Toward Socialism:

These countries have strong state control over the economy, minimal private ownership, and extensive welfare systems. They tend to prioritize equality and public ownership over free markets.

1. Cuba has a centrally planned economy where the government controls most industries, particularly major sectors like healthcare, education, and energy. Private enterprise is very limited.

2. North Korea It’s a highly centralized socialist state where almost all property and means of production are state-owned, with strict government control over all aspects of the economy.

3. Venezuela While it has some capitalist elements, the Venezuelan government controls key industries such as oil and energy, and the state has enacted policies aimed at wealth redistribution and price controls.

Countries with Both Capitalist and Socialist Elements (Mixed Economies):

Most developed countries incorporate both capitalist and socialist principles. They have free markets but also offer significant social welfare programs and government intervention in the economy.

1. Sweden is often cited as an example of a social democracy. It has a market-based economy, but the government provides extensive social welfare, including universal healthcare, education, and a comprehensive social safety net.

2. Germany has a capitalist economy almost exclusively driven by the private sector, but it also offers strong worker protections, public healthcare, free education, and a significant welfare system.

3. Canada operates under a largely capitalist framework but has a strong social safety net, including universal healthcare, publicly funded education, and various social programs aimed at reducing inequality.

4. While France has a free market economy, it also has strong state involvement, with extensive public services like healthcare, education, and social security funded through high taxes.

These mixed economies show that it’s not necessary to choose between capitalism and socialism and why comparing one to the other isn't an "apples to apples" comparison. Many countries incorporate elements of both systems to provide a balance of economic growth and social welfare. That being said, the closest you could probably get to "pure capitalism" would likely Hong Kong (until some recent changes).

Historically, Hong Kong has been one of the most capitalist economies in the world. It has extremely low taxes, minimal government intervention, and a very free-market approach. The government largely stayed out of regulating businesses and industries, making it one of the freest economies globally.

However, even Hong Kong had some public services, such as healthcare and public housing, though these were minimal compared to the comprehensive welfare programs found in more socialist-leaning countries. For example, in Hong Kong you still have to pay to go see a Dr, but there's caps on the limits that the doctors and hospitals can charge (and, despite this, doctors and almost all medical workers in Hong Kong are still extremely well-paid).

Despite this, it’s important to note that even in highly capitalist economies like Hong Kong, some socialist principles (e.g., public services) still exist. In practice, purely capitalist systems without any form of welfare or public services are rare or non-existent today.