Question: why hufflepuffs are the best house?
Answer: Hufflepuff is an open, egalitarian house, the most inviting of all the houses at Hogwarts. ... Crucially, Hufflepuffs stayed to fight not because they were battle-hungry like their Gryffindor compatriots but because they felt a sense of duty, J.K Rowling has said. Quite simply, they're good people who do the right thing.