First of all, the relationship between these three emperors is clear, so as to better understand their political achievements and inheritance relationship, the Qianlong Emperor is the father of the Jiaqing Emperor, is the grandfather of the Daoguang Emperor, so the three of them are similar to Kangxi, Yongzheng, and Qianlong. Let's talk about their respective political achievements, so that everyone can analyze at a glance who is better.
The Qianlong Emperor, first of all, he has a record that no one can surpass, Qianlong claims to be the longest-lived unified emperor in Chinese history, lived for 89 years, and on the real reign time, in fact, it is also his longest, on the surface he said that he did not dare to surpass the 61 years of his emperor Kangxi, in fact, he ruled for 63 years, and he was a down-to-earth ruler (he was 25 years old when he ascended the throne, and there was no delay for a year, and Kangxi ascended the throne at the age of 8, so the previous few years were regent by others, so when he was not pro-government"). Moreover, the Qing Dynasty that Qianlong took over was the Qing Empire after the reform of his father Yongzheng, when the Qing Dynasty was the largest GDP in the world and was in its prime. During the reign of Qianlong, although he did not open up the territory like his grandfather Kangxi, he was also considered to have made meritorious contributions to defending the land, and the territory of the Great Qing Dynasty reached its peak during the Qianlong period.
The Jiaqing Emperor, when he took over the baton of the Qing Dynasty, the Great Qing Dynasty had begun to decline, and peasant uprisings in various places began to appear frequently, such as the White Lotus Sect Uprising that later affected the whole country, the most bizarre thing was that during the jiaqing reign, there was also a strange story of the rebel army breaking into the Forbidden City, and Jiaqing himself had limited ability, not to implement strong reforms like his grandfather Yongzheng to change the decline, but a shoucheng, not yet defended, the most important thing is that he was tragically killed by lightning while hunting in the summer resort (wild history record).
Daoguang Emperor, the Qing Dynasty was bullied by foreigners for the first time at his hands, there was an Opium War, and even let the British do it, and also signed the first unequal treaty in Chinese history, the Treaty of Nanjing, which was simply faceless, and later the Great Qing Dynasty was even more decayed at the hands of Daoguang, and began to fall into the abyss of semi-colonial and semi-feudal society. (The Monument of Merit is a tribute to the emperor's great achievements during his reign, and if he loses his land during his reign, it will be a great shame and humiliation, and he is not qualified to erect this monument)
Therefore, dear officials, which of these three emperors is better, I believe I don't need to say it.