Produced in sweden and distilled from winter wheat, [link|http://www.drinksmixer.com/desc136.html|Absolut] has a smooth and malty consistancy - with a subtle hint of dried fruit.
On the other hand, some vodka is made from potatoes.
[link|http://cocktails.about.com/library/weekly/aa010599.htm|Vodka is made] from neutral spirits, (which are distilled spirits produced from any material at or above 190\ufffd proof). Usually it is distilled from grain or potatoes. The end result is ethanol. It is then charcoal filtered, rectified or distilled again to ensure all congeners and taste is removed. In the United States, the Bureau of Alcohol, Tobacco, and Firearms' law states that "Vodka is neutral spirits so distilled, or so treated after distillation with charcoal or other materials, as to be without distinctive character, aroma, taste, or color."
I've never found them to have much taste.