Yangzhou and Huzhou are both cities in China, but when comparing their levels of development, Yangzhou generally ranks higher. This conclusion is based on various factors such as economic output, infrastructure, and population growth.

Yangzhou, located in the eastern part of Jiangsu Province, has a long history and is known for its rich cultural heritage. The city has seen significant economic growth in recent years, with a GDP that has been consistently higher than that of Huzhou. According to data from the National Bureau of Statistics of China, Yangzhou's GDP reached 460.5 billion yuan in 2020, while Huzhou's GDP was 390.5 billion yuan in the same year. This indicates a higher economic output in Yangzhou.

In terms of infrastructure, Yangzhou has also made substantial investments. The city boasts a well-developed transportation network, including a high-speed railway station and an international airport. Additionally, Yangzhou has been actively promoting the development of high-tech industries and has established several industrial parks. These factors contribute to the city's overall development and economic growth.

Population growth is another indicator of a city's development. Yangzhou has a larger population than Huzhou, with an estimated population of 5.3 million in 2020, compared to Huzhou's 4.2 million. A larger population often signifies a more vibrant economy and a higher standard of living.

Huzhou, on the other hand, is located in Zhejiang Province and is known for its silk industry and waterways. While the city has made progress in recent years, it still lags behind Yangzhou in terms of economic output and infrastructure. Huzhou's GDP and population are both lower than those of Yangzhou, indicating a lower level of development.

In conclusion, based on economic output, infrastructure, and population growth, Yangzhou is more developed than Huzhou. This is evident from the higher GDP, better transportation network, and larger population in Yangzhou.