Best professor/headministess at Hogwarts

Umbridge: @Dolores_JaneUmbridge
Dumbledore: @AlbusBDumbledore
Hermione: @HermioneJGranger10
Voldemort: @Tom_MarvaloRiddle
Ron: @Ron__Bilus_weasley

Torturing students and child abuse and finding Dumbledor's army.

WHERE IS THEIR HEADQUARTERS?!

if you seen any of these people: https://scratch.mit.edu/projects/956553875/ tell immtietly