Hello!
Li Bai
Although there are claims by Li and Du, in fact, Du Fu was far less famous than Li Bai in the Tang Dynasty. It was Han Yu and others of later generations who compared Du Fu with Li Bai.
Li Bai's poetic achievements are very high. He is a giant in the prosperous Tang Dynasty. He is unruly and maverick, and his influence on future generations is self-evident.
As for Bai Juyi and Du Mu, Li Bai is much worse than them.
If you have any questions, please ask.