Out of the box, Ubuntu command line is a little more colorful and easier to use than pure Debian. And while (finally) the current Debian stable does support my server hardware, the previous stable did not, where Ubuntu server did. The other thing to consider, is Debians manual partitioner (which you have to use to setup soft RAID) is a pain in the @ss compared to Ubuntu's setup of the manual partitioner, not a big deal but definitely another reason for Ubuntu server, vs Debian testing or stable.
So, it's not really "needs" I have, rather it's "wants". Basically the "want" of a server system with Ubuntu's package support, but without the number of upgrades/ breakages of a Ubuntu system.
And when you do run gui programs off of a server (x-forwarded to desktop machines), you do end up with a good deal of desktop packages installed in your system, even if it is headless and CLI.
“The only way to fix Linux is to take one distro, one set of components as a baseline, abandon everything else and everyone should just contribute to this single Linux..."