Poul Anderson's Terran Empire rules a volume of space inhabited by many humanoid, and some more exotic, beings whereas Larry Niven's and Jerry Pournelle's Second Empire of Man rules only human colony planets until there is First Contact with the Moties.
The purpose of comparing two works is not to denigrate the currently read work by comparison but rather to enjoy both works simultaneously, appreciating contrasts as well as parallels. Because of blogging and other activities, I am rereading Niven's and Pournelle's The Mote In God's Eye at a snail's pace. However, I remember from previous readings that the protagonist, Rod Blaine, loses his first command as does Anderson's Dominic Flandry in The Rebel Worlds. On the other hand, neither of these characters was destined to captain a spaceship. Blaine has aristocratic responsibilities and Flandry is better suited to Intelligence work.
I will continue to reread Mote, not specifically seeking comparisons with Anderson's Technic History, but probably continuing to find points of comparison with other future histories, including the several by Anderson.