Ubuntu 12.04.2 LTS – Precise Pangolin
Rhythmbox. It's kind of like iTunes but you can keep all your music not actually on the computer (I keep it on my flash drive) and it'll automatically detect your music when you open the app if you have the drive plugged in.
Screenshot. Oh my god, best screenshot system I've ever seen. You can choose to take a screenshot of the whole screen, the current window, or a selection. Before I had Ubuntu I used LightShot on Windows 8 but this is just as good, if not better.
Panel; i.e. the bar on top, as on Macs. I especially like the mail/network/Rhythmbox/user account combination of icons, the lack of clutter as compared to the Windows bottom bar, and the menus that are integrated in every application is cool too.
Dash Home. It just feels really nicely organized and I like it.
Application Installation. I guess everybody's trending towards things like the Ubuntu Software Centre now, like Apple's App Store, Windows whatever Store, etc. There's no need to deal with installation files and destination folders (cough Windows cough).
I also really like the open source apps that people make for Ubuntu. They're free, reliable, and a quick Google search will tell you which apps the majority of Ubuntu users like, as opposed to finding Windows programs, where it's all about profit and companies and stuff. Basically I find the whole open-source environment very homely.
Uninstalling Apps. I haven't found a way to uninstall apps normally and I don't think there is a way. Oh well, I get to learn how to use the Terminal this way.
Launcher Appearance. I don't know what it is about it, but it just looks not-modern, like the way XP windows look to me now. I might install some app to fix that to my desire later on.
LibreOffice. I am a MSO Word user through and through, particularly with the advent of the famed Ribbon menu (whose name I like too, since it can refer to the ink ribbon thing in typewriters). Hopefully I can find a replacement in the near future, or accustom myself to traditional menus.
All in all, Ubuntu is very good. I almost don't mind switching over from my very-new Windows 8 desktop (almost because this computer has a Pentium 4 and 2 GB of RAM and is slightly but noticeably slower). I think I might continue using Ubuntu as my main OS in the future, since it's free and all and seems to keep up with the developments of proprietary software. And if all goes well, I might actually fall in love with the Terminal.