The best district in Zhongshan, China, is widely considered to be the Nanhai District. This district has emerged as a hub of economic growth and development in the city. According to the Zhongshan Statistical Bureau, the GDP of Nanhai District has been consistently growing at an annual rate of 8-10% over the past decade, significantly outpacing the city's overall GDP growth rate. This economic dynamism is attributed to several key factors.

Firstly, Nanhai District is home to a diverse range of industries, including electronics, machinery, and petrochemicals. These industries have attracted numerous multinational corporations and startups, creating a robust business environment. For instance, the Zhongshan Nanhai Economic and Technological Development Zone, located within the district, has become a major industrial park in the region, hosting over 2,000 enterprises.

Secondly, the government of Nanhai District has implemented several policies to promote economic development. These include tax incentives, streamlined administrative procedures, and infrastructure investments. For example, the district has invested heavily in transportation networks, improving connectivity both within the district and with other cities in the Pearl River Delta region.

Moreover, Nanhai District boasts a highly skilled workforce. The district has several vocational schools and universities, including the Zhongshan University of Technology, which provides a steady stream of skilled graduates to the local job market. This has helped to foster a culture of innovation and entrepreneurship in the district.

In terms of living standards, Nanhai District offers a high quality of life. The district has a well-developed public transportation system, numerous parks and recreational facilities, and excellent healthcare services. According to a survey conducted by the China Urban Development Institute, Nanhai District ranks among the top 10 districts in China for overall living standards.

In conclusion, Nanhai District in Zhongshan is the best district due to its robust economic growth, diverse industries, supportive government policies, skilled workforce, and high living standards. These factors have made it a prime location for businesses and residents alike.