I like Slytherin House btw. and i would say an owl, I'm usually quite and awake during the nights, im pretty wise with giving people help and knowing what's best.
I would like to think my patronus would be a horse. Although not having on of my own at the moment, I'm always going to my uncles to ride. They're my favorite animal, they're big an powerful, yet gentle beasts. When I'm around them I feel I'm apart of them.