I don't think people who use Ubuntu are more savvy than Windows users. In my real life experiences the only people I've seen who use Ubuntu don't even know what Linux is. This is pretty skewed though because I hardly ever meet anyone who uses anything other than Windows to begin with. In the online world, if I judge experience and knowledge by the posts on forums I would say Ubuntu users are the least capable of any group I've seen. This, again, is going to be biased and skewed because Ubuntu has a lot more users than other versions of Linux, and I don't go to the Ubuntu forums. Which means that on general Linux forums this is the case, but for all I know all the tech savvy Ubuntu users either 1.) don't use forums, or 2.) mainly stay on the official Ubuntu forums.