"Ubuntu regularly claims to be the most popular Linux
distribution. But, if so, Fedora is a competitive second. Both have
thriving communities and are a major source of free and open source
software innovation.
"Regularly, you can read on mailing lists of users having grown
discontented with one and deciding to migrate to the other. In many
users' minds, each is an alternative to the other.
"But how do the distributions really compare?
"The most reliable answer is to examine the latest releases,
Ubuntu 10.04 (Lucid Lynx) and Fedora 13 (Goddard) -- or, to be
exact, Fedora 13's release candidate, since last minute concerns
delayed the final release that was expected this week by another
seven days. Dealing with a release candidate does put some
restrictions on the comparison, but, to judge from previous
releases, not enough to affect the overall impressions."