I bought the Ride Slack Country UL. Honestly I couldn't be happier with my choice. It floats like a dream in powder (only have to move back about an inch of center to make it float through anything) and it handles great on the regular groomed trails. Pop is okay, not like a park/pipe board but way better than an all mountain board. Just make sure you buy the right size for your weight.
IE: Your body weight + bindings + boots + body armor/helmet + snowboard jacket/pants/gloves/googles and if you ride w/ a back back w/ stuff in it, etc...
Alot of people just go "I weight 160lbs and look at the weight chart and buy the one that fits. If the ranges over lap and your in the center of the range go with the larger board.
The point of a powder board is to float like a feather, not sink like a rock.. lol