I have good friends who use Ubuntu, and they are happy. However they live in a different continent, so any information we exchange via Linux tends to be via email.
I also have many work associates who use Fedora and are quite happy.
IMHO in the most part, Linux is Linux. Once one becomes more familiar with Linux, what works on one distribution can also be migrated to another.
My view has always been the primary criteria in deciding to go for a distribution (whether it be Ubuntu, or openSUSE, or another distribution) should be the day-to-day “in-person” support one gets from people one knows, and meets on a daily basis. I give that priority over Internet contacts.
Because of that, I have been sorely tempted to move to Fedora a number of times, because most of my work associates use Fedora at home, and also at the office.
What has “held me back” in making the switch to Fedora are some unsatisfactory initial foray’s (I primarily missed YaST and the state of the art multimedia rpms has, which is IMHO superior to that of Fedora), and also my 7 years background/familiarity with openSUSE (together some other factors have kept me on openSUSE).
In openSUSE I like:
a. the openSUSE community on IRC channels and also on the forums;
b. the the state of the art (second to none) packaged rpms created by the Packman packager volunteers (for multimedia) are as good, if not better than what is available for other distributions;
c. YaST configuration tool (in comparison I do not like the fragmented nature of the various tools offered by other distributions),
d. the openSUSE KDE implementation, which is IMHO superior to the KDE implementations of all other distributions;
I have spent time on IRC #ubuntu, and also spent time surfing the Ubuntu forums. The sheer volume is there in Ubuntu (which IMHO says a lot), and that volume can lead to some neat technical solutions. But I also find this high level of technical accuracy is sporadic, forcing one to wade through a lot more posts to get an accurate answer. I also find their forums are more controlled than the forums of most other distributions with a larger amount of censorship, which by virtue of it being censorship is not readily observable (unless one is watching careful, or have friends who tell one about it). But as noted, I do get decent reviews from my Ubuntu user friends about Ubuntu, so I would not disparage anyone who wishes to use Ubuntu. IMHO Linux is still Linux.