Which brand of calligraphy ink is better?

It depends on what paper you use. If it is rice paper, you can certainly use some good ink, such as the good ink of Yidege, Hongxing, Weng and Li Tinggui. If it is inferior paper, such as fringed paper and Yuanshu paper, you can use a little ink, such as 6 yuan Xuanhe, cheap Yidege, Chinese or Beijing ink. If you want to be a good paper, grind it yourself. The words written by grinding ink will have a stronger sense of hierarchy.