"think it can safely be said that RHEL is currently the dominant
enterprise Linux distribution. Then, of course, there are the
clones. If you so choose, you can forgo Shadowman's Support team
and either compile the freely available Redhat Source RPMs, or
choose to use a community-supported RHEL clone. Currently, the two
most popular of those clone distributions are CEntOS (Community
Enterprise Operating System) and Scientific Linux (SL).
"So if you have decided to not utilize Redhat support, which of
these downstream clones is the better choice? With the recent (much
delayed) release of CentOS 6.0 in the past week, many company's are
looking to move up to the RHEL 6.0 family of operating systems. But
is CentOS still the right choice? Being a primarily CentOS shop,
and being more than a little OCD myself, I decided to compare the
two in as practical as a manner as I could."