The great benefit of Red Hat is that it's stable and supported for a very long time, like 20 years. They don't change anything major in a release, and releases are few and far between. This is great for 'Enterprise' stuff, but the web is moving quickly and package support for RHEL boxes isn't great.
Having said that, where I work we have lots of stuff on RHEL/CentOS, and more and more stuff on Ubuntu. The Ubuntu stuff keeps me awake at night - literally. It's always falling over. I have never experience a kernel like the one the Ubuntu team are putting are. It's absolutely atrocious. The biggest problem is that the software we need to use has better support for Ubuntu than RHEL, so we're stuck using a dire OS to run it on.
The RHEL and CentOS boxes we have are rock solid stable and have never really given us significant issues. I walk into the office and get a new Ubuntu problem every day.
(FWIW I use Debian for all my own stuff exclusively, so I know my way around Debian-derivatives - this isn't a configuration issue).