But there are a few points why I wont use it.
1. I dont like the artwork,
2. the company behind Opensuse Novell I do find even more evil than canonical
3. I had bad experinces with the old suse yes that are really old ones, but you have to keep your stereotypes alive its even a bit hard for me to force me into using fedora, but even its also rpm based and I found the idea behind rpm always not that good than debian-based systems, not only the package formats that have file-dependencies what I think is a bad design idea and leaded to much more dependency-problems than I ever had with debian based systems, I also did never liked redhats and suses different filesystem or linux directory structure.
I even tryed out opensuse a few months ago, because I wrote a article for a german linux-magazine that has opensuse as target plattform, and it is better, but even there I had some mixed experinces about installing keepassx in opensuse there are no stable versions to install, mostly in some kind of "ppa", especially such a passwort-tool should be supported by the distribution, else you have to trust that such 3rd party person dont include a trojan. In Ubuntu as example there is a package in stable (universe) since hardy and maybe earlier? and there is the one universe package, not 20 different versions from different people.
Its shurly a way better distribution than it was when I used it, no question about that, much has changed, but I feel like its even more newby-oriented than ubuntu is.
About mageia, why its nothing for me, I need a big widly supported distribution, not such a me-too distribution, redhat for france (mageia), redhat for germany (opensuse) except at least there stands a big company behind this one.
They not even in their newest beta or alpha have gnome 3.7 packages...
Its a bit like changing from ubuntu to linux mint, except linux mint is (nearly) 100% compatible to ubuntu and most if not all ppas will work in mint too. in the rpm Redhat world, you would go to hell if you try to mix up rpms for different distributions.
As a developer you cant target 1000 different distributions, and not all distributions even the not biggest ones can make packages for all the stuff out there, here theoreticaly rolling releases distribution that have a good integrated package compile system, in theory can be just copied a old build-script increase the package version and change the link to the tgz file or even better just have one that gets the newest head from git and compiles for you.
And then there is the other high support possibility you are one or the most used distribution, than the developers often or the distri will give you a ppa or something like that.
Yes new and many packages is not everything, quality is also a question, and other stuff, but it have to be a good mixture, and even the moralic aspect is importent, I tend to like here both fedora and arch, but at the moment both dont give me 100% what I want, and I think I am not alone here, especially about fedora, fedora has at the moment bigger problems, I am optimistic that in a year thats all gone and hopefully it will be a great distribution with good and very steady release-cycle, if not its nearly like 10 years ago, a few other names, arch instead of gentoo even gentoo is still kind of alive, I would really like that some distribution would be a real head on head alternative to ubuntu. The only player I see here is fedora, and for noobs maybe opensuse.
Yes of course its only under my viewpoint, as aperently one of the last gnome lovers ^^ (real gnome with shell no "fork")