Red Hat Enterprise Linux is described as 'Red Hat is the leader in development, deployment, and management of Linux and open source solutions for Internet infrastructure - ranging from embedded devices to secure Web servers. Red Hat was founded in 1994 by visionary entrepreneurs Bob Young and Marc Ewing' and is a very popular Linux Distro in the os & utilities category. There are more than 100 alternatives to Red Hat Enterprise Linux for a variety of platforms, including Linux, Self-Hosted, Windows, BSD and Mac apps. The best Red Hat Enterprise Linux alternative is Linux Mint, which is both free and Open Source. Other great apps like Red Hat Enterprise Linux are Ubuntu, Debian, Fedora and Arch Linux.
More funtionaly, easier, more stable, and based on SUSE Linux Enterprise, with excellent interfaces.