Which of the four famous inkstones in China ranks first, and where is it produced?

In other words, Guangdong inkstone, She Yan, Yan Tao and Cheng Ni are the four famous traditional inkstones in China. Inkstone is an essential tool for China's calligraphy. The inkstone is not only the stationery of the study, but also a rare collection of literati in past dynasties because of its solid nature and immortality. The materials of inkstone are rich and varied. Besides Duanyan, Rolling Stone, Taohe Stone, Mudstone, HongLing Stone, Strange Stone and Chrysanthemum Stone, there are dozens of kinds of jade inkstones, jade miscellaneous stone inkstones, tile inkstones, lacquer sand inkstones, iron inkstones and porcelain inkstones. Since the Tang Dynasty, Duan Xi inkstone in Guangdong, Shexian inkstone in Anhui, Yan Tao inkstone in southern Gansu and Cheng Ni inkstone in Luoyang, Henan have been called "four famous inkstones" together, among which Duanyan and She Yan are the most famous. Many places in China produce inkstones, such as Zisha Guiyan in Shandong, Yanzishi Fossil Fossil inkstone in Dawenkou, Tian Heng inkstone and Shiwen inkstone in Jimo, Tuoji inkstone in Penglai, Xuenan inkstone and Xugong inkstone in Linyi, Nishan inkstone in Qufu, Tiantan inkstone in Jiyuan, Henan, Xerox inkstone in Suxian, Anhui, ochre inkstone in Xiushui, Jiangxi, and inkstone in the lower reaches of Songhua River in Jilin. However, since the Tang Dynasty, Duanyan, She Yan, Yan Tao, Cheng Ni and Hongsi inkstone have gained special reputations. Cheng Ni inkstone belongs to pottery, and the other four inkstones are stone inkstones.