They are all very strong. It is difficult to distinguish between high and low. Some things are not comparable. The so-called "Yan Jin and Liu Gu", doesn't the strength of Yan Zhenqing's characters compare to Liu Gongquan's, and doesn't the strength of the muscles and veins in Liu Gongquan's characters compare to Yan Zhenqing's? This is not comparable. Everyone's style of writing contributes a certain value from a certain angle. It is difficult to say that a tiger's horns are lost to those of an ox.
In fact, the calligraphy works of the same person have different values ??in the eyes of different calligraphers, and their evaluations are also different, or even very different. In calligraphy competitions that are often held now, for the same work, the nine judges are all first-class calligraphers, but the highest score may be in the 90s and the lowest score may be in the 50s. The difference is so big.
This situation also existed in ancient times. The famous calligrapher Mi Fu disparaged Liu Gongquan's calligraphy, saying that he "did not learn from Europe, but was the ancestor of ugly and evil calligraphy."