Guinness, absinthe, and ouzo have never given me a hangover even after those rare nights of extreme consumption... Now, I do usually consume absinthe in the traditional way (with equal parts water) but, I've been truly amazed to wake up with no hangover after doing the, again extreme, things that I've done to my body with the stuff previously. On the other hand, even when it's of excellent quality I experience hangover-like symptoms after drinking white and sparkling wines, and when I drink vodka.
Are some alcoholic beverages known to be least likely to cause hangovers? If so, what characteristics of the drinks affect this?