One thing that I noticed hadn't been discussed is security. If you go to http://www.linuxsecurity.com/advisories and look at each distro you will notice that by far Redhat has had the largest number of advisories. I haven't done any research to see if the distro's that go to companies like IBM and Dell for servers are more secure, but I would certainly hope so. Redhat, although not quite as bad as Microsoft, seems to have advisories ALL the time, as apposed to Slackware or freeBSD, which can go for months at a time without a single advisory. IMHO, I would never run a Redhat server because the chance of it being compromised is a lot greater.
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One thing that I noticed hadn't been discussed is security. If you go to http://www.linuxsecurity.com/advisories and look at each distro you will notice that by far Redhat has had the largest number of advisories. I haven't done any research to see if the distro's that go to companies like IBM and Dell for servers are more secure, but I would certainly hope so. Redhat, although not quite as bad as Microsoft, seems to have advisories ALL the time, as apposed to Slackware or freeBSD, which can go for months at a time without a single advisory. IMHO, I would never run a Redhat server because the chance of it being compromised is a lot greater.