omg...just go the hill do a performance rental and try out/demo a bunch of boards...its like $50 at my little hill and you can demo/change out boards all day long....they have many of the boards that have been mentioned. Or buy whatever and after some experience/time you will have some reference experience to relate to what we all have been sayin. Really it took me a couple few years to figure out my riding style, preference and conditions so that I was even at a skill level to appreciate and take advantage of the board design and tech.
Well that's easier said than done considering that I live in Sweden. And it's october. I've been going to the same mountain for 12 years, and I've never heard anything about a demo day.
I just want to make sure that I get the right board, and with everyone's help I bet I will!