Which is better, Sun's calligraphy or Huang Tingjian's?

Huang Tingjian was born in 1045. His name is Lu Zhi, and some people even call him a Taoist in the valley. Old age is called Fuweng. He lives in Jiangxi and is a famous writer and calligrapher in the Northern Song Dynasty. Then, for these two outstanding calligraphers, who is better, Sun or Huang Tingjian?

In fact, their calligraphy should be equivalent. In terms of time, they were born in different periods and have different writing styles. Moreover, judging from the characteristics of their calligraphy, both of them have their own merits. However, if we really want to compare them, in fact, Sun is not as famous as Huang Tingjian in calligraphy, but Sun's dynasty is also very representative. There were many calligraphers in the Tang Dynasty, and many were famous. Therefore, people like Sun can stand out among these calligraphers, which shows that he is still very powerful. Huang Tingjian is a very great calligrapher. He was very famous in the Song Dynasty. He was called "three schools and one ancestor" with him, Du Fu and Chen Yizhi. He was as famous as Du Fu and was called "Su Huang".