I prefer Arch based distros such as Antergos and Manjaro. Ubuntu for ease of use and stability. I much prefer the way being on the bleeding edge with arch and how packages are installed. But going to a website and looking for a download page to install a program, you will most likely find an installer for Ubuntu/Debian first before any other distro.
I mostly prefer Gnome but I am trying out KDE Plasma right now (I thought KDE connect with my android phone would be useful).