If I might make a suggestion. First off I'm a Linux guy 95% of the time. I only retain a Windows partition on my computer(s) because of a couple of applications I need that wont run under WINE. I used Ubuntu for many years and it was great. That is until they dropped GNOME in favor of Unity. I know a lot of people like Unity but it isn't for me. I tried several of the Ubuntu derivatives such as KDE, XFCE etc. but never was all that happy with Ubuntu after that. A friend of mine, a fellow Linux user, told me about Linux Mint. I made the switch and never looked back. That was five years ago.
Linux Mint uses the Ubuntu kernel and shares many of its repositories. But the similarities stop there. For me the user interface that comes with Linux Mint is much better than Ubuntu/Unity. If I caught your interest and you want to check it out Linux Mint offers a Live CD download (like most other Linux distributions) so you can try it before installing. My recommendation is the Cinnamon version which is a fork of GNOME 3. Another good choice would be MATE. MATE is a fork of GNOME 2. Both are very stable releases and both offer Long Term Support (LTS) that follow the Ubuntu releases. I believe the current LTS release is supported until 2019.
http://www.linuxmint.com