There is no "Best Ski" or whatever. It is all about what works for you. This opinion based thread is going to turn into a bashing of some ski or ski company.
Don't count out Head, especially for powder, the Mojo 110's (I think that's the size) look intense. I haven't strapped them on yet, but I have a good feeling about 'em. As for park, the concept behind the Trouble Makers is pretty sick... I blew an edge out on my Crichtons after only a few months, so the new edge construction on the TM's sounds cool...
i believe that salomon will have a great line-up. they have put in so much effort on all of their skis for next year. also putting in 2 new skis. i think it'll be friggin' awesome.