The Greatest Empire?

[Camel Jockey]

I'd say Roman over the English due to the lack of technology that the Romans had compared to the innovations the English took advantage of, such as trains and the telegraph. Without the same technology, I think it's difficult to make a general comparison between them. With the technology the Romans had at the time, it's extremely impressive that they were able to keep control of their empire for as long as they did.  I also would say the Roman empire was more impactful because the Roman empire and its collapse gave birth to modern Europe and paved the way for later empires like the English. While I don't have much knowledge on Imperial China, I would just say that they wouldn't be the greatest empire because they weren't as directly involved in global matters like the Romans were. The Chinese technology was definitely  impactful on the globe, but because the Chinese were more isolationists than the Romans were, I'd argue that the Romans were the better empire.