I just reviewed three of the most popular Linux distributions–Fedora, openSUSE, and Ubuntu–and each one is great for the right user. That said, there are many other excellent distributions, so let me tell you about two of my other favorites: MEPIS and Mint.
MEPIS is easily the most obscure of my favorite distributions. Unlike most Linux distributions, it has neither a company nor a community behind it. MEPIS is almost entirely the product of one developer, Warren Woodford.
Warren, after playing with SUSE and Mandrake (now Mandriva Linux), decided he could create his own distribution that met his needs better and so started what became MEPIS, also known as SimplyMEPIS, a Debian Linux-based desktop distribution.