Ubuntu is much more faster over Windows and helps to get software and other utilities easier and within a short span of time compared to Windows.

Ubuntu helps to get robustness and resiliency over Windows. Ubuntu runs faster than Windows on every computer that I have ever tested. LibreOffice (Ubuntu's default office suite) runs much faster than Microsoft Office on every computer that I have ever tested.

Global familiarity, free, widely used, and as a debian distro feels more comfortable when rapidly switching between local macOS and remote command lines.

CentOS does boast quite a few security/stability improvements, however as a RHEL-based distro, differs quite significantly in the command line and suffers from slightly less frequent package updates. (Could be a good or bad thing depending on your use-case and if it is public facing)

At the moment of the decision, my desktop was the primary place I did work. Due to this, I can't have it blow up on me while I work. While Arch is interesting and powerful, Ubuntu offers (at least for me) a lot more stability and lets me focus on other things than maintaining my own OS installation.