It is hard to say. I started just for fun doing multiboot because it was to hard for me to choose ...
As I was and still am new to all of this stuff and I did not had to much time for doing a study on Grub(2). Lilo was no obtion for me (that is why I did not liked Slackware) because it only supports limited partitions (because at a certain moment I was running up till 38 distro's).
So I tried almost all (commercial) bootmanager on the market because I am still not into programming and that kind of stuff.
I tried most out of Distrowatch. Really liked Hymera (Italian and Debian based but no longer active I believe), the standard Interface was not much but it had also a a very
beautiful one included which could be activated in the extra options. Did not understood why it was not their general Desktop Environment, one of the most beautiful on the Linux market.
Gos (Ubuntu based) was (was because I do not think it is still active) a OSX look a like.
I did not like Sidux because some updates messed up some other partitions, especially the grub part. That reminds me of another distro of which I do not remember the name anymore. It had a special updating system, I believe it was called Conakry or something like that. It tried to update all other Linux kernels if found too on the other partitions with the result I could start all over again...
I liked SuperOS and Ultimate Edition because all the stuff it had included from the start. Vector Linux, Black Panther, OpenGeu, Chakra and PC/OS nice to try and had each their own special blend. DreamLinux is still on the to do list, what ever I do I am unable to install this one because of some bug towards my hardware. Trisquel is a stripped version of Ubuntu, I like it because it really demonstrates how good a Linux Distro is capable of watching flash movies without the flashplugin of Adobe without any problems although this plugin still has to be installed after the installation.
On the end I had a few distros left of which I was unable to choose from ...
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Sabayon and
MoonOS (Very beautiful Desktop Environment)
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Linux Mint (Beautiful and out of the box experience)
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PcLinuxOs,
Deephin, and especially
Zorin OS and
YLMF OS are very Windows Look a like as Desktop Environment (not everything of Windows is bad)
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Pardus was also very nice to have, although sometimes buggy
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Ubuntu Netbook I liked too to have as desktop.
- OpenSuse : what can I say about this one, is there anything left to be improved? I doubt it. Also the fact that it downloading the updates and installing them at the same time whilst working without any delay on the system was very impressive. 1.5 gb within 20 minutes was amazing.
My final observation was that 60% of Linux distros used is Ubuntu based. Ubuntu is actually a polished and user friendly version of Debian. So actually it is Debian which is running the show.