Just to throw my opinion into the mix, I would recommend the DH2 above some of the others mentioned so far. At 180 myself, I find anything softer doesn't handle out-of-park riding that well. You also have the added benefit of being able to land jumps with more stability. Not to mention the serious pop the DH2 offers. You will have a significantly harder time with presses but as you progress and become a more aggressive rider they'll come, even on a stiffer board. I'd also recommend the Nitro Eero Ettala as another option.
Can't speak to NS as I have yet to ride one.