In fact, as far as some characteristics of Xiang Yu and Liu Bang are concerned, Xiang Yu does have some excellent qualities, and Liu Bang does have some places that can be hacked. Another example is: Xiang Yu is tall and powerful, extremely intelligent, brilliant, commanding, able to fight and spell, and of noble birth. Another example is Liu Bang, a ruffian rogue, unemployed and despised by his parents. Externality is right or wrong, which is not the normal law. It can be said that there is a gap between these two people.
In fact, from a historical point of view, we all prefer Xiang Yu as individuals. After all, if Liu Bang finally wins the world. Xiang Yu is now Gao Fushuai. He is very capable of doing things for people. Compared with Liu Bangbi, he is a diaosi.
And look at the moral level of the two, Liu Bang kicked the child out of the car when he escaped, and Liu Bang said it didn't matter when Xiang Yu wanted to cook Liu Bang's father, and so on. Xiang Yu's life is holding his lover and drinking wine. Do you think if you were a director, you would shoot Liu Bang? Therefore, Xiang Yu's is a necessary protagonist.
Also, when Liu Bang pacified the world, he once said, "I have nothing to lose with the sages of the world." Also, after Liu Bang was called the Emperor, he was determined to kill a large number of heroes. Liu Bang is a man who achieved himself at the expense of others. Xiang Yu is completely different. People who look generous have a cold side to others.
Therefore, Xiang Yu is a typical novel character with all the characteristics of the protagonist, and Liu Bang is a typical supporting role. But the ending is different.