I agree. My impression of RHEL and its likes is that they are "slow and outdated", but the more actual research I do, the more I feel like using them for their stability and security.
Agree as well. And I'm not sure about the "outdated" characterization. I find the most hardware driver support with RHEL. If a vendor is going to support Linux at all, they almost always start with RHEL and its derivatives.
RHEL is the Linux distro for production systems that you want to just run without any tinkering or surprises.
It seems to take a few releases longer for new features to move from Fedora to RHEL, but RHEL 7 is pretty current. That stability is great though, you can stay on one version of RHEL for a very long time and still get patch support, especially since major upgrades are so traumatic on most Linux distributions (RHEL included)