As someone who hasn't used CentOS much, when I've had to use it I've found the package selection (packages/versions) to be lacking, requiring me to use one of the countless 3rd party repos that may or may not contain what I need
They don't seem to see how this negates the advantage of using a "well tested, enterprise grade" distro!
I much prefer Debian (for servers and development machines) as a good intersection between "up to date" and "stable".
The thing I find strange is that the people I'm talking about will happily run code from random 3rd party repos (providing PHP 7.0 or similar), and copy/paste repo key fingerprints from the web without blinking, while steadfastly refusing to use an OS with such packages included and tested in the official repos "because security/quality/enterprise".
At my new job, we recently had that debate -- and I was quickly overruled for recommending CentOS/RHEL. My employer is a Java shop, I can almost always find rpm and deb pkg's for most stuff we need.
For the record: I have no idea how the package selection compares between CentOS and Debian - I've been firmly in the Debian camp since forever, and stay there mostly for other reasons, of which laziness is the most important one.