Originally Posted by
itchief
The two best are
Titos, made in Austin TX
Snow Queen, made in Kazakhstan
^ for Snow Queen. Got a bottle two years ago in the duty free in Manchester - it was a little expensive, but well worth it. Apparently uses "Kazakh birch charcoal" in the (5x) distillation process, and has gotten a huge amount of awards over the past couple of years as well. It doesn't seem to have become all that mainstream yet though.