I work at a snowboard shop, I tell people to get a board that is between your chin and nose.
With the new tech you can go with a shorter board. Like if you get a reverse camber you'll be fine in any kind of condition. Most company's have some form of magne traction so it'll will have great edge hold. But with size 12 boots you will need something wider
Are you a girl? Cuz dumb girls are hot