Replying to Hellbent: new vs old

I am wondering what is better about either ski. I know the old bents are smaller, but they also have zero camber underfoot. The new ones are bigger, but they also have thinner tips so swingweight is lighter. I am trying to figure out which would be better for me, because I am going to be going to western next year for college and skiing at mt. Baker, but only on pow days cuz of school. I am 5' 7" about 140 lbs, and I would only use these for the good days, but which ones can handle a groom run too?