There was no clear answer to the question of who was better, Li Zhi or Li Tai. Different literature and opinions had different views on this issue. Some documents believed that Li Tai was a leader in literary talent, but because of his overly radical attitude, he lost the qualification to be the heir. Some other documents believed that Li Zhi had made remarkable achievements, but the final outcome was regrettable. There were also some documents that believed that Li Zhi had the highest ability. He could achieve the rule of literature and martial arts, showing wisdom and deep thinking. However, there were also documents that pointed out that Li Zhi showed a cowardly character when Li Shimin was still alive. In summary, there was not enough information to determine whose ability was better.

Li Chengqian, Li Zhi, and Li Tai were the three sons of Li Shimin, Emperor Taizong of the Tang Dynasty. Li Chengqian was Taizong's eldest son and had once been made Crown Prince, but he had lost this position because of his misbehavior. Li Tai was Taizong's second son and was considered the most suitable candidate to inherit the throne because he was intelligent, studious, and accomplished in literature. However, due to his overly radical attitude, he did not become the Crown Prince in the end. On the contrary, Li Zhi became the Crown Prince and eventually inherited the throne. Li Zhi was regarded as kind-hearted, intelligent, studious, upright, and deeply favored by Taizong. Therefore, according to the information provided, Li Zhi was the final candidate to become the Crown Prince and inherit the throne.
According to the information provided, Li Chengqian, Li Zhi, and Li Tai were the three sons of Emperor Taizong of the Tang Dynasty, Li Shimin. Li Chengqian was once made Crown Prince, but he lost this position because of his misbehavior. Li Tai was considered the most suitable candidate to inherit the throne because he was smart, studious, and accomplished in literature. However, due to his overly radical attitude, he did not become the Crown Prince in the end. On the contrary, Li Zhi became the Crown Prince and eventually inherited the throne. Li Zhi was regarded as kind-hearted, intelligent, studious, upright, and deeply favored by Taizong. Therefore, according to the information provided, Li Zhi was the final candidate to become the Crown Prince and inherit the throne.
Li Zhi and Li Tai didn't have a good relationship. It was mentioned in the documents that Li Zhi had been threatened by Li Tai to prevent him from competing for the position of Crown Prince. In addition, Li Tai colluded with the Crown Prince Li Chengqian to usurp the throne. Emperor Taizong's favoritism towards Li Tai also aroused Li Chengqian's jealousy and dissatisfaction. Therefore, it could be said that Li Zhi and Li Tai's relationship wasn't friendly.
Li Shimin had a deep affection for Li Tai and Li Zhi. Li Tai was loved by Li Shimin because of his talent and literary talent, even more than his other sons. Li Shimin allowed Li Tai to open a literature museum and did not control his spending. However, Li Tai's ambition and ambition to fight for the throne had aroused Li Shiming's vigilance, which eventually led to him losing the opportunity to inherit the throne. On the other hand, Li Zhi was especially doted on by Li Shimin because of his young age. Li Shimin even raised him personally after the death of Li Zhi's mother, Empress Zhangsun. Although Li Zhi was considered an " incompetent and indecisive " emperor, Li Shimin still chose him as the Crown Prince and eventually passed the throne to him. In summary, Li Shimin had deep feelings for both Li Tai and Li Zhi, so he couldn't be sure which son he liked more.
The reason why Li Tai couldn't win against Li Zhi was because during the battle for the Crown Prince, Li Tai had said at the last critical moment that he would kill his son and pass it on to his younger brother. This made Li Shiming decide not to make him the Crown Prince. After Li Shiming calmed down, he finally chose to make Li Zhi the Crown Prince under the persuasion of Zhangsun Wuji and the others. This was because Li Zhi had a generous personality and was filial to Li Shiming. He could get along well with his other brothers. Li Shimin believed that such a decision would ensure the safety of his three sons. Thus, Li Tai lost to Li Zhi in the battle for the crown prince.
The reason why Li Tai couldn't win against Li Zhi was because during the battle for the Crown Prince, Li Tai had said at the last critical moment that he would kill his son and pass it on to his younger brother. This made Li Shiming decide not to make him the Crown Prince. After Li Shiming calmed down, he finally chose to make Li Zhi the Crown Prince under the persuasion of Zhangsun Wuji and the others. This was because Li Zhi had a generous personality and was filial to Li Shiming. In addition, Li Tai's overly radical attitude had also caused him to lose the qualifications to be the heir. After all, Li Tai had lost to Li Zhi in the battle for the crown prince.
The reason why Li Tai couldn't win against Li Zhi was because during the battle for the Crown Prince, Li Tai had said at the last critical moment that he would kill his son and pass it on to his younger brother. This made Li Shiming decide not to make him the Crown Prince. After Li Shiming calmed down, he finally chose to make Li Zhi the Crown Prince under the persuasion of Zhangsun Wuji and the others. This was because Li Zhi had a generous personality and was filial to Li Shiming. In addition, Li Tai's overly radical attitude had also caused him to lose the qualifications to be the heir. After all, Li Tai had lost to Li Zhi in the battle for the crown prince.
Li Zhi was not Li Chengye. In " Hot Blood Chang 'an ", Li Zhi was Li Jiancheng's son, and Li Chengye was another character. Li Chengye was a character in the Eastern Palace. He was Li Chengye, the King of Xuande, and had a close brotherhood with Li Yan, the heir. Therefore, Li Zhi and Li Chengye were two different people.
Li Zhi was not Li Chengye. Li Zhi was Li Jiancheng's son, and Li Chengye was another person. Li Chengye was a character in the Eastern Palace. He was Li Chengye, the King of Xuande, and had a close brotherhood with Li Yan, the heir. Therefore, according to the information provided, Li Zhi and Li Chengye were two different people.
The relationship between Liu Li and Li Zhi was the confidant relationship in the movie " The Wind Raises the Rainbow." Even though Li Zhi was a little interested in Azurite, the person he really liked was always Wu Zetian. In the end, Li Zhi fulfilled the relationship between Liu Li and Pei Xingjian. Therefore, it could be said that Li Zhi and Liu Li were friends.