[rattray]

Speaking as someone who has "given Ubuntu a go", but has no expertise whatsoever... can you explain what your list of RHEL/Ubuntu pros & cons mean?

I have no idea why one arrangement of /etc/ is preferable to another, for example. Is it just security, isolation, and better package management?

[pferde]

Please read again. Those are not "pros&cons", but mere list of differences between the two distro families.

[SEJeff]

Exactly. They are just the differences. If you'd want a technical pro/con of Ubuntu/Debian vs Redhat/Fedora, that is an entirely different post equally as large (perhaps more-so). In summary, from an ease of sysadmin standpoint for large numbers of servers, redhat and the redhat ecosystem (cobbler, pulp, freeipa, sssd, abrtd, kickstart) just beats the living pants off of anything Ubuntu/Debian have. It is much easier to manage thousands of Redhat machines (without building everything custom like google) than it is thousands of Ubuntu/Debian machines. I know this because I've done both as part of my day job.