Well, Sunshine is the better hill IMO. Louise is always really icy on the frontside. But on the back has some awesome glades. Sunshine is bigger and nicer snow IMO.
What do you mean how? They ride great, Lots of Pop and Flex, they just rip it up hard. As far as suggesting a board, I would say you would have to tell me your riding style. Charlie Slasher will rip up the pow like no mans buisness, StairMaster will Butter and Jib like crazy, all depends.