Attempted installs for Slackware, Gentoo and OpenSuse versions of Linux, the Gentoo I couldnt get past the basic search & load drivers, the Slackware installed ok, but failed when booting. The OpenSuse works well, a very nice gui based installer and equally good looking gui when running.
I installed the KDE 4.3 desktop with my OpenSuse. There was the option to install either Gnome or KDE. Nil amateur packages on OpenSuse, but still a good easy to install and use package, for those new to Linux and just wish to experiment.
Next, I wish to give Fedora 12 a test run, maybe Debian 5.04 too. I have been holding off upgrading my two Ubuntu boxes from 9.10 to 10.4, as I deciding whether to reallocate one of these boxes to another project.
In summary, for amateur radio related activities, still best to use either Debian/Ubuntu or Fedora bundles. For a ham that is new to Linux, probably Ubuntu is best choice, as it is just so easy to install and use.