the whole point of Vodka is that it's neutral, so how can you say it taste like shit? Now Gin is basically Vodka with the addition of Juniper berries and herbs, some say that tastes like shit.
I personally think a good Vodka like Kettle One tastes nice, dry and refreshing on the rocks or with a splash of water.
I don't know much about Scotch Whiskey, but this guy does, he's fucking great! check it out:
******** width="560" height="315" src="http://www.youtube.com/embed/L2NxmZMW7Ys" frameborder="0" allowfullscreen></iframe>
not sure if the embedding is going to work it's the newer style.
http://youtu.be/L2NxmZMW7Ys