If you could cast one type of magic spell, which would you choose, and why?
This is quite possibly one of the silliest questions ever.
For purely selfish reasons: probably George Weasley or Sirius Black.
For curiosities sake: George Weasley - Because you KNOW he'd have interesting things on his person, jokes and mysterious items.
and a dementor - because I have to know what they are besides floaty cloaked things. I want to know.