I usually drink my vodka on the rocks. I used to keep it in the freezer and drink it straight, but I found that I was drinking WAY too much that way. Now that is only for rare occasions.
My usual everyday vodka is either Finlandia, Skyy, or Stoli. I am a big fan of Ketel One, and Belvedere, just not a fan of the price.
I find Żubrówka and Christiania to be terrible. I threw away a bottle of Żubrówka that I bought in Taiwan a few years ago. Who thought it was a good idea to put a blade of grass in there?
The Christiania is still sitting on a shelf in the basement after many years.