Sunapee is a decent place if you live in western NH and don't want to drive the extra deserved distance to VT. Otherwise stick to Waterville, their rails are good, nice hits, and even pipe.
skiboarding could be compared to the boot skis. They were a trial snow product, they had their couple years of being on the market, and now it is time to move on.
Waterville has the best park in NH this year. If you don't mind skiing with kids that are good, switch 270 to disaster down the back side of kink, and other crazy stuff WV is the best.