“Ubuntu has been overtaken by Fedora, Mint, and openSUSE. Mint
now holds the number one spot in all of DistroWatch’s rankings
going back at least a year, which leads us to wonder why.
One reason behind this reversal of fortune for Ubuntu could be
the change of default interface in version 11.04 or “Natty
Narwhal”, released in April 2011. With the new Ubuntu came Unity,
an interface previously seen in Ubuntu Netbook Edition, and Gnome
was relegated to an option.