That's pretty funny, maybe you should go to launchpad and actually look at some of the bugs that affect ubuntu... without bugs? (YA RIGHT!). ...what was it, maybe a week ago - i posted a video showing 'the nvidia blank window bug' that was a regression in compiz (and thus unity) that bug has been around since 11.04 with no solution in sight... I wouldn't call windows appearing on the screen incorrectly, 'polished'. ~ but this is just one example (but a good one too, since Canonical is developing compiz / unity).
You also went on to say, that fedora would fail to boot (and for some reason you think Ubuntu doesn't have this issue?), yet google produces many many links when searching 'ubuntu 12.10 fails to boot', some issues have been fixed, others not.