Given that you have Debian experience already, I'd go with the latest Ubuntu Server LTS version. The advantage is that if there are instructions for how to do

Given that you have Debian experience already, I'd go with the latest Ubuntu Server LTS version. The advantage is that if there are instructions for how to do anything you need, that's what they'll most likely be written for. (And Ubuntu is a fork of Debian so it'll be familiar to you.)