1. Albus Dumbledore. Image via Warner Bros.
As a student overall? Probably Hermione. Severus Snape is greater genius than her, no doubt, but those experiment and spells needed time to be done. And all those book outside of school one's.
By knowledge, Hermione Granger is the smartest and should be easily able to defeat Voldemort with her spells. How is a wizard's power calculated in the Harry Potter series? Could adult Lord Voldemort remove the underage magic trace of a witch?
As you know, Hermione was the smartest in the trio. But she was book smart, she could memorize things easily, and she studies a lot. She kept herself educated. Harry has a brave personality, and is more street smart.
There were few people as kind as Luna Lovegood in the wizarding world. She always stepped up to give Harry and her friends much-needed support, without expecting anything in return…
Harry may not be stronger than Dumbledore, but Hermione? Hermione could beat Dumbledore any day if she wanted to. She's one of the most brilliant minds of her generation; like any good Gryffindor, she's brave, loyal, and strong.
Albus Percival Wulfric Brian Dumbledore was the only wizard Voldemort ever feared and the only one who could have defeated him in a duel. Albus Dumbledore is the most powerful wizard in the Harry Potter.
She is also the first one of her age to be able to cast non-verbal spells. Hermione is a competent duellist – Rowling has stated that during the first three books Hermione could have beaten Harry in any magical duel, but by the fourth book Harry had become so good at DADA that he would have defeated Hermione.
It shouldn't be hard to believe, but Draco Malfoy was the second most intelligent student in all of Harry's year. That Slytherin determination can accomplish quite a lot. Draco received at least three OWLs (including both Transfiguration and Potions) and he is very competitive with Hermione.
Draco must have done a lot of experimenting, research, and difficult magic to fix that cabinet. Although Harry would never admit it, Draco is obviously an intelligent and talented wizard, perhaps one of the smartest in his Hogwarts year.
The Head of Slytherin is Horace Slughorn (who left the role to Severus Snape for fifteen years before taking it up again in 1996) and the House's patron ghost is the Bloody Baron.
Those that are gifted with the power of flight are perhaps more rare than any other wizard that has any other power. Able to fly purely because of their own powers and not reliant on any type of enchanted item or spell at all, the number of these special wizards known to exist can be counted on one hand.
Lord Voldemort (Ralph Fiennes), aka Tom Riddle, was described by Dumbledore as one of the best students ever to graduate Hogwarts as well as "the most dangerous Dark wizard of all time." Before he had even learned about the existence of the Wizarding world, he was terrorizing his fellow orphans with impressive but ...
The most powerful muggle is Mary Lou Barebone from the Harry Potter spin-off Fantastic Beasts and Where to Find Them. As the leader of the New Salem Philanthropic Society (aka the Second Salemers), she holds an immense amount of power as she attempts to bring down all witches and wizards for good.
No matter his rage and grief, Harry doesn't have what it takes to defeat Bellatrix. Bellatrix is Voldemort's most loyal and most powerful Death Eater of all, and she claimed many victims in Voldemort's name.
Harry. He has the edge in knowledge of spells and he is a more skilled wizard and dueller than his best friend. I'm not saying Ron is bad, but he certaintly isn't as good. Could a normal wizard beat Harry Potter in a duel?
Without a doubt, Dolores Umbridge is the most hated character in the Harry Potter universe. Her unnaturally calm and polite demeanor paired with her cruelty makes her incredibly irritating.
Severus Snape is a fictional character in J. K. Rowling's Harry Potter series. He is an exceptionally skilled wizard whose extremely cold and resentful exterior conceals deep emotions and anguish.