Board Help

I am looking for a new board. I have had the same board for about 10 years and have decided it's time. I been riding an old Burton Floater 155 with Ride bindings. I was thinking of getting a 158-160. I don't hit up the park too much. I prefer to stay in the trees and powder, and would prefer a board that is not too stiff.

My Stats:
Height:5 10"
Weight:175 lbs
Level:Intermediate/Advanced