debian

Debian 8.2 GNOME desktop
debian.org
Debian is composed entirely of free software, most of which is under the GNU General Public License and packaged by a group of individuals participating in the Debian Project. Popular with long-time Linux users, Debian includes more than 51,000 pre-compiled software packages. It was named for its creator, Ian Murdock, and his wife Debra. Debian includes popular free programs such as LibreOffice, Firefox web browser, Evolution mail, K3b disc burner, VLC media player, GIMP image editor, and Evince document viewer. Debian is a popular choice for web servers.

Ubuntu

UbuntuMaverickDesktop
ubuntu.com
One of the most popular Linux distributions, Ubuntu comes in both community-supported and professionally supported (paid) editions. It’s popular for cloud deployments and organizations using containers, and it also has a loyal fanbase of home desktop users. It is one of the distribution systems of Linux, and is based on the Debian architecture. Ubuntu is also available for tablets and smartphones, with the Ubuntu Touch edition. A default installation of Ubuntu contains a wide range of software that includes LibreOffice, Firefox, Thunderbird, Transmission, and several lightweight games such as Sudoku and chess. Many additional software packages are accessible from the built in Ubuntu Software Center as well as any other APT-based package management tools. Ubuntu operates under the GNU General Public License (GPL) and all of the application software installed by default is free software. In addition, Ubuntu installs some hardware drivers that are available only in binary format, but such packages are clearly marked in the restricted component. Intuitive dash interface making it easy to find applications, files and other things with a great set of keyboard shortcuts.

openSUSE

Opensuse11-1kde4
opensuse.org
SUSE is popular with large enterprises who need a supported operating system and don’t mind paying a fee. openSUSE is the community-supported free version of the same software. The openSUSE Project community, sponsored by SUSE, develops and maintains SUSE Linux distributions components. openSUSE is the successor to SUSE Linux Professional. Like most Linux distributions, openSUSE includes both a default graphical user interface (GUI) and a command line interface option. Users of openSUSE may choose several desktops environments GUIs like GNOME, KDE, Cinnamon, MATE, LXQt, Xfce. openSUSE supports thousands of software packages across the full range of free software / open source development.

Fedora

Fedora 10 Desktop
getfedora.org
Fedora, developed by the community-supported Fedora Project and sponsored by the Red Hat company. Red Hat Enterprise Linux is among the most popular supported distributions of Linux for enterprises. To use it, you’ll need to pay a fee for support. Fedora offers the same operating system in a free package that does not come with professional support. Fedora comes installed with a wide range of software such as LibreOffice and Firefox. Additional software is available from the software repositories and can be installed using the DNF package manager or GNOME Software.

antergos

Antergos Linux menu
antergos.com
Formerly known as Cinnarch, Arch-based Antergos has enjoyed a surge in popularity. The installation process is very easy. It offers six different optional desktops. Its default configuration provides you with a ready-to-use system. No additional steps are required after installation. You’ll be able to surf the web, listen to music, watch videos, and do anything else you like. Simply reboot your system and enjoy. Antergos is a rolling release distribution. Your entire system, from the base OS components to the applications that you install, will receive updates as they are released upstream—with only a minimal delay to ensure stability. Antergos is available in many languages including Spanish, Galician, Catalan, English, German, and more.

Linux Mint

LinuxMintScreen
linuxmint.com
Linux Mint is a community-driven Linux distribution based on Debian and Ubuntu that strives to be a modern, elegant and comfortable operating system which is both powerful and easy to use. Great choice for users who are experimenting with Linux for the first time. It comes with several options for interfaces. Linux Mint is very easy to use. In a 2012 online poll at Lifehacker, Linux Mint was voted the second best Linux distribution, after Ubuntu, with almost 16% of the votes.

Manjaro

Manjaro Linux 16.06 Daniella 64-bit Xfce
manjaro.org
This Linux distribution has recently experienced a sharp increase in popularity. It comes with many popular applications, multimedia codecs and desktop environments preinstalled, so it doesn’t take long to get Manjaro up and running. Manjaro Linux comes with both a CLI and a graphical installer. The rolling release model means that the user does not need to reinstall the system to keep it up-to-date.

A personal technical diary… To the point… Precise