It's unfortunate, Debian seems stuck in the old ways, there is alot right with Ubuntu, and Debian can learn from it... After switching, every now an again I spot differences, and it nearly always not as good in Debian. (and the Debian community support sucks badly, if you ask a newbie question, you get slated or looked down upon, in the Ubuntu world, people are more sympathetic and almost always happy to help out).
I suppose I've never had any luck with the Ubuntu community and more with the Debian. Then when I need to ask for help, the question is so high level most of the Ubuntu community is at a loss. And there isn't a 'newbie' level question that I've come across that couldn't be answered by Google. After a while hearing the same question over and over is a bit tiring.
I guess I don't see what Ubuntu has that debian doesn't. If you want rock solid, Debian stable is just that. If you want cutting edge, Debian Sid is almost always newer than Ubuntu's latest because Ubuntu decides to lock to a release until the next version.
In addition, the problem highlighted right here. So Ubuntu supports i386 and amd64 and ppc and the latest armel but what about my alpha, avr32, hppa, hurd-i386, ia64, m68k, mips, mipsel, s390 and sparc? In addition the latest amazing feat: FreeBSD Kernel on amd64 and i386. Wonder Twin Powers Activate: apt-get & ZFS.