CentOS 7 The Best Free And Open Source Enterprise Linux
There is also a Minimal iso (without a GUI) which provides just the packages required for a functional system in less than 700MB and a net install iso which also doubles as a rescue image. The net install iso is very useful if you already have a local mirror in place. NB. All these are available ONLY in 64-bit editions.
After installation, run yum update to obtain the latest packages.
You can also select the software to be installed right from the setup installation process. Mozilla Firefox is provided as the default browser, there is LibreOffice for all your Office needs and Rhythmbox for your music. Other software applications provided include Gedit as the default text editor, Boxes for virtualization, Brasero, Empathy and Evolution for chat and email needs, Cheese webcam and more. For applications that are unavailable by default, you can easily install them with the Gnome Software Manager.