It somehow feels wrong that I'm posting in this thread from Windows: I've got a triple boot configured. Windows 7 for most of my games and Steam library, a very small Windows XP partition for some much older stuff that won't run on Windows 7 (or not well), and Linux for everything else that isn't gaming related, unless it's a game that I can get to run efficiently under Wine.
You know, the whole GNU/Linux thing is interesting and a good thing for people to learn in order for them to understand the spirit of things and how some designs by Microsoft and Apple really originated. When it comes to people's common vernacular and discussions about the operating system, it should just be called Linux. I love Ubuntu, Debian, and all their derivitives, but when talking to people online within the Debian community I've frequently been accosted by people and seen it happen to others, that whenever I or somebody else simply says "Linux" another person feels the need to correct us and say it's "GNU/Linux," and tactfully or otherwise tell us to start calling it that. As I said, it's technically correct and a good thing to know for the sake of understanding history, but when it comes to plain conversation it's just terribly irritating.
I'm one of the many who don't care for Gnome Shell/Unity, but to each his own. It's amazing the amount of fighting I've seen over it. My only complaint about Gnome 3 is the fact that it's Gnome. It shouldn't be. It's not Gnome in any way. What we have now should have been a fork of the Gnome project or something new altogether, rather than replacing Linux's most popular desktop environment. So my only complaint with Ubuntu really has nothing to do with Ubuntu. With the destruction of Gnome I started exploring a bit. I was already familiar with XFCE and LXDE but saw this as an opportunity to try out KDE. I fell in love with it.
I like what the Mint team has done with Cinnamon. It's polished and easy for anybody to use, and it's easy to theme. The "Mint Menu" has been brought over from Gnome, something else I really love about Mint. Mate is also very good and a worthy replacement for Gnome 2. There are still some customization problems I don't like, especially related to Compiz, but nothing I couldn't live with. I think the Mint updater and software center are both more intuitive and useful than the Ubuntu counterpart, but it's really just a matter of personal preference. Both are excellent distros.
What I really love about Ubuntu, Mint, and Debian - which are all the same at the core, as Ubuntu is built on Debian and Mint is built on Ubuntu, with the exception of Mint's Debian Edition - is their simplicity. When I was new to Linux the impression I got from some vets (read: elitists) was that you aren't a "power user" unless you use a distro that frustrates you and most others. That's stupid. The aforementioned three are great because they simply get out of your way. Their package manager is very simple to use, they ship with almost everything anybody would need with much more in their repositories, and a large enough user base that help is always available. Some might have needs or desires beyond those simple things but it's designed in such a way that the noobiest of noobs can jump right in and experienced users can also find plenty to work with.
I'm surprised KDE is doing much better. In fact, I would think Unity would slightly outperform KDE on a netbook. Given the small size of... well, everything on a netbook, perhaps a tiling window manager would be better than a stacking one. DWM is easier to install than many others, is fairly extensible, and still supports mouse usage. Thinking about putting that on my laptop as well because I tend to eschew the trackpad when a mouse isn't available.