Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
The unthinkable is happening – Linux Mint is overtaking Ubuntu in popularity.
Watching DistroWatch.com recently, a popular aggregator for Linux distributions and a barometer of Linux distribution popularity, Ubuntu -- the darling of desktop Linux -- has at times been no longer number one. Ubuntu is threatened by its rival, Linux Mint, which recently overtook it. (Although right now, it's back in the number one spot.)
However, measuring Linux distribution popularity is far from a science. As a freely available operating system, Linux distributions can be mirrored among thousands of independently owned sites, distributed on magazine cover CDs, sold on discs and so on. Meaning it's impossible to truly know how many people are using any particular distribution of Linux.