Voters have determined their top Christmas tree pick for this Christmas season. Forestry at About.com provides the vote for most preferred Christmas tree species commonly available for purchase in the United States. The current winner is Fraser fir (see photo of North Carolina Fraser fir Christmas tree farm at top) but you can change or support this by casting your vote. In second place comes Doug fir, followed by balsam fir and Colorado blue spruce.
Also, here are links to more Christmas tree information - Growing and Buying Christmas Trees
Fraser Fir Christmas Tree Farm in North Carolina - Photo by Steve Nix, Licensed to About.com