Sorry, late to the party, I was hanging out with First Fandom this weekend.
Regarding opensuse, we use it here at work, as well. The few times we've allowed Ubuntu on our workstations have been an utter nightmare. Ubuntu is on one of the servers and seems okay there. Tried CentOS on a server and it nearly broke me (somehow, every single install disc we burned, be it netinstall, dvd, cd, etc, had some different bizarre problem partway through the install despite the md5s matching up, and then it seemed to actively fight against my attempts to get it to join our NIS domain).
Opensuse's pretty logically laid out and has rather unmatched front ends for administration when you don't want to vim or joe everything. The package manager is powerful and comparably intuitive on the command line (doesn't use separate apps for installing and searching, for one thing). In truth, opensuse's only real problem is that it's not popular, so it doesn't get as many packages as the competition. It doesn't have a *small* number of packages, but sometimes it's a bit annoying when you want to bleed your edge.
I use arch at home. yaourt (pacman but with a FreeBSD-esque compile-from-source installer that has a yillion extra packages) rocks it pretty hard. I have, however, been forced to do things to fix problems whose solutions are not listed anywhere in the archwiki (my printer explicitly does not work with their stock cups, so I have to install an alternate version of cups and then play around with modprobe; also, that Catalyst driver seems to detonate at the drop of a hat).