I'm not sure you're looking at the right boards. For trees and moguls, I'd want something softer and easier to throw around. The boards you're looking at were designed with the intention of slaying big mountain lines. If you're looking at NS and Jones, I might push you more toward the Mountain Twin and SL.
I have to disagree at least on the Raptor... I weigh 160-165 and on my 156 I actually seek out the tightest tree lines I can find because I can whip this thing around INSTANTANEOUSLY! I AM a pretty powerful rider at 5'5" and aint chubby, so that might have something to do with it.