Replying to Looking for an all mountain/pow ski

I'm looking for a ski for trips up to Mount Bohemia (for anyone who lives in the midwest), and just powder days/all mountain cruising. Most powder days will be in tight trees. I am 5'9" 140 pounds and I would classify myself as an expert. I can get the best deals on Icelantic, RMU, Liberty, Bluehouse, Faction, and 4frnt. I have been looking at the Liberty Helix, 4frnt cody, Faction Prodigy, and RMU Apostle. Would any of these be a good choice for me? If not I am open to any other ideas.

I'm always not sure of what size to get for an all mountain ski. I currently ski a 179 Faction Silas which is center mounted so it skis very short, but feels nice and nimble for the park.

Any help is appreciated,
Thanks!