5. You Have An Amazing Mascot And House Ghost
The Fat Friar is an exceptionally welcoming and cheerful House Ghost who opens his arms out to every new student, regardless of their house. He even defends Peeves when he doesn't deserve it and always explains his belief in delivering second chances, and considering how annoying Peeves is to anyone other than the Weasley twins, this is more than he deserves. Also, as animals go, badgers are pretty cool.