Ubuntu has been quite popular on DistroWatch for a long time now. Currently it is at the number 1 position for hits per day on the site over the last six months, 675 higher than it’s closest competition (OpenSUSE), and that doesn’t even count in the 1563 hits from Xubuntu, Kubuntu, Mythbuntu, Fluxbuntu, Ubuntu Studio and Ubuntu CE.
Once again, Ubuntu outranks them all. What’s even nicer is that Debian is second here. makes my theory feel stronger that all RPM based distros will probably become Debian-based within the next 5 years or so (or die out, unless something superior emerges (no pun intended)). I might be completely wrong… who knows, but, when you look at the trends (got this link from Mark Shuttleworth’s website), and if they continue the way they do, then things certainly don’t look good for the future popularity of RPM based systems: