Generally speaking, Wu Ronghua's teapot is better. The following are specific comparisons:

* Production technology: Wu Ronghua, purple sand craftsman, arts and crafts artist for 20 years. The designed stone ladle has a capacity of 220 ml. The material is raw ore purple mud mined in Huanglong Mountain, Yixing. Mud color is mature, steady and dignified. After being produced in a high-temperature kiln, it is a deep earthy color, which can calm the mind. The pot body is round and elegant, and the color of the pot surface is smooth and natural.

* Material and color: The material and color of Li Xinsheng teapot are unknown.

To sum up, Wu Ronghua's teapot may be superior to Li Xinsheng's teapot in terms of production technology, material selection and color. Of course, judging who is good also depends on personal preferences and aesthetics.