How do Wang Xizhi, Wang Mian, Su Shi and Jia Dao rank?

Are you talking about chronological order? These four people are not easy to compare in calligraphy, painting and poetry writing, but they specialize in different fields.

Calligraphy of Wang Xizhi in the Eastern Jin Dynasty in 303 AD

Wang Mian's Painting in Yuan Dynasty

Su Shi (1037-1101) is a calligraphy poem in the Northern Song Dynasty.

Jia Dao (779 ~ 843) was a poet in the Tang Dynasty.

So the chronological order should be: Wang Xizhi, Jia Dao, Eastern Jin, Su Shi, Wang Mian.