The long answer is that openSUSE has the best OS installer I've ever seen, Fedora has been and is easy to install, and Maegia is easy to install, and the same goes for pretty much any distro under the sun except for Debian, Gentoo, and Arch which is more a matter of having to RTFM more than anything.
As far as usage goes again it's not really true, the only two things that Ubuntu has going for it is it's custom package manager (which to be perfectly honest I don't care for) and Jockey which will automatically detect and ask you to install proprietary drivers. Now on the other paw Fedora has the system-config-* set which provides a nice GUI for system adminstration tasks however there's no easy tool for installing proprietary drivers which will never happen for Fedora anyway as it's again their code. openSUSE has YaST which like the system-config-* set make administration tasks relatively trivial if you don't want to play around with config files, and the openSUSE guide has a one-click installer for your proprietary drivers. Maegia again has it's own configuration tools but it does have a tool for proprietary drivers.
For all of the major distros that have commercial backers and thus can be targeted by MPEG-LA and co installing the multimedia codecs needs to be done manually it is worth noting that openSUSE has a one-click for this. As well Flash is an automatic recommended package to install the first time you run the YaST package manager module.
As far as # of Packages go as it's debian based Ubuntu has a lot of packages available to it, Fedora has a lot less however it has the ones that matter to me (I can't comment on your usage case without knowing what programs you use) between the official repos and RPMFusion, and openSUSE has the OBS which puts it close to debian in # of packages available, all available by easy one click installs and unlike any other binary distro it doesn't have the problem of repo version bouncing causing compatibility breaks due to Zypper having the concept of vendors.