I'm creating this post as the one Zoltan created never really progressed, so I guess I'll start:
- Linux Mint
I know this was highly unexpected of me considering I'm a SUSE fanatic, but Mint is my distro of choice. Why? From freedom came elegance. Mint is fantastic at having everything you need with the bare options you need packed into a GUI without conjuring clutter.
I don't really prefer the Ubuntu based version over the Debian based version or vice versa. As a matter of fact, I have chosen both to be the basis of my accessibility script which is a work in progress (Not that Mint isn't accessible enough).
Mint makes it easy to swap between open and closed drivers, participate in any form of development, has the best forum, and due to it's nature is also great for enthusiasts (I wouldn't say any distro is necessarily better for enthusiasts but rather to use what you like). Mint gives you total control over updates, and every codec you can imagine is already installed. Steam is easy to maintain as well because at its core Mint is Debian in which SteamOS is based upon. I currently use Mint on my workstation, and used to use it on my laptop but I switched to SUSE Tumbleweed to fix the bugs that are preventing me from using it as my daily driver on my workstation.
openSUSE gets so many things right yet at the same time has too many options that are in the GUI itself. When using the KDE version of openSUSE even with my tweaks I felt like I was running an OEM copy of Windows 7 that just so happened to be open source.
But all of this changed once I tried the Gnome edition of openSUSE. I'm going to be honest; I don't care for Gnome, Plasma, MATE, XFCE, LXQT, or anything of the sort. The only thing I can use and feel like I'm using my desktop in the most productive manner is Cinnamon, and I would say Gnome takes 2nd but falls short in a few aspects. SUSE didn't feel as bloat heavy as it did with the KDE edition granted it did take so long to boot either way that I could check my email on my iPad. Enough bashing (pun intended), let's get to why it is my 2nd favourite distribution.
Zypper: I love Zypper. It is my favourite package manager of all time. Its capabilities are fantastic and the syntaxes are awesome and something every PM should use.
Virtualization: SUSE made it so easy to create and manage virtual machines that it was easy to run say 5 VMs at once without having to worry about having a cluttered desktop.
Documentation: The documentation provided is the best of all dsitros available. It is in depth and to the point.
That is why SUSE is my 2nd favourite when it comes to Linux.
I don't know to begin. Manjaro is what you would get if all the GUI options in SUSE were CLI with a but of Mints simplicity mixed in. Pacman is awesome for managing packages, the AUR is great, the community isn't snobbish, and drivers aren't hard to manage. Manjaro and Arch are two different distributions that share different concepts, and just so happen to share the same PM and the AUR; both have different goals.