Every House at Hogwarts School of Witchcraft and Wizardry is tailored to a specific type of student. Gryffindors are brave, Slytherins are ambitious, Hufflepuffs are hardworking, and Ravenclaws are intelligent. And, given that the students who are sorted into Hogwarts are quite literally the brightest, it comes as no surprise that Ravenclaw witches and wizards tend to be high achievers.
Power comes in all different forms in the Harry Potter world. It can be in the form of magical power, social influence, or intelligence and other talents. But who are the most powerful Ravenclaws in the Harry Potter universe?
To be fair, the mere fact that Moaning Myrtle has any influence at all in the world despite the fact that she’s dead does say something about her as a person. However, as most students who encounter her would probably agree, it doesn’t necessarily say something good.
Myrtle exists as an annoyance at best, and to be honest, the fact that she didn’t even figure out that she was killed by a basilisk doesn’t compliment her intellectual prowess either, which is really all she has left in the afterlife.
Cho Chang was sort of a character who existed in the outer orbit of the main Harry Potter storyline, but there’s a reason that Harry himself was so interested in her.
Cho was a charming and popular girl who made friends with everyone, she was a pretty exceptionally talented witch, and she was brave and bold enough to join Dumbledore’s Army and fight against the Dark Lord in the Battle of Hogwarts, which is more than many Ravenclaws can say.
Ideally the characters of the Harry Potter world are powerful in the positive sense, but occasionally there are characters whose power is more of an ill omen than anything. Unfortunately, Gilderoy Lockhart is the latter sort of powerful person.
In almost every way he’s an incompetent, bumbling fool, but his talent for memory charms literally enabled him to become one of the most famous and popular wizards in the world, at least for a short time before he was hoisted by his own petard.