What kind of lower case is the best in calligraphy works of past dynasties?

Zhong Wei Tour "Recommended Season Table"

Zhong Wei tour declaration form

Huang Tingjing by Wang Xizhi in the Eastern Jin Dynasty

Monument to Cao E, the filial daughter of Wang Xizhi in the Eastern Jin Dynasty

Wang Xizhi's Tao Te Ching is lowercase.

Thirteen Lines of Luo Shenfu by Wang Xianzhi in the Eastern Jin Dynasty

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