Personally, I'm partial to a Doug-fir, or White Fir, or Black Spruce, or even a White Spruce. Let's be honest, when it comes to trees, I have trouble choosing favorites. If you are feeling crafty this season though, you can always make your own Christmas tree.
Here we have a lovely bike tree:
And from Maine a lobster trap Christmas tree:
Photos via Gear Log and Nautica?