upvoted for pacman. I actually have only tried arch at a friend's place, because for some anal reason Arch does not provide livecds. Only a command shell from where you must build your system up, which is quite a pain.

But I have only heard good things about pacman (and it's ultra simple package format). It enables Arch's rolling releases model, which means that you are always up2date without having to go from Beserking Baboon to Chittering Chimpanzee.

It is a much saner model for a stable, usable desktop system. If you can manage to combine this with a kernel update technology like ksplice, you have a super stable, updated Linux desktop without ever having to reboot (which makes the whole splash screen effort quite pointless actually)