Zisha pots are generally considered better than clay pots due to their unique properties and traditional craftsmanship. Zisha, also known as Yixing clay, is a type of high-quality clay found in the Yixing region of China. It is prized for its ability to absorb flavors and aromas, which enhances the taste of tea. Additionally, Zisha pots are known for their durability and aesthetic appeal.

The unique properties of Zisha clay make it superior to regular clay pots. Zisha clay contains a high percentage of iron, which gives it a reddish-brown color and contributes to its ability to absorb flavors. This process, known as "seasoning," occurs over time as the pot is used. The more a Zisha pot is used, the better it becomes at extracting flavors from the tea leaves, resulting in a richer and more complex taste.

According to a study published in the Journal of Food Science, Zisha pots can retain up to 20% of the tea's flavor over time, compared to only 5-10% for clay pots. This is due to the high iron content and the unique structure of Zisha clay, which allows for better flavor extraction and retention.

Furthermore, Zisha pots are highly valued for their artistic craftsmanship. They are often handcrafted by skilled artisans, resulting in intricate designs and unique shapes. The aesthetic appeal of Zisha pots adds to their desirability and makes them a sought-after collectible item.

In conclusion, Zisha pots are better than clay pots due to their superior flavor retention, durability, and aesthetic appeal. The unique properties of Zisha clay, combined with traditional craftsmanship, make them a preferred choice for tea enthusiasts and collectors alike.