Despite running into issues from time to time, I am a big fan of Ubuntu Linux!
I started out with Ubuntu version 7.04 (Feisty Fawn) and made my way up to Hardy Heron (8.04). Then I stuck with Hardy Heron until after Intrepid Ibex (8.10) and Jaunty Jackalope (9.04) were released. Hardy Heron was a LTS (long term support) release and I liked that it was so stable.
Then Ubuntu Karmic Koala was released on Oct 29, 2009 and I decided it was time to upgrade.