This isn't true, both distros use systems that incrementally update based on which updates have been pushed by the developers. If you're talking about the base install, I'd love to see some evidence of this, and compare features. But really, there isn't anything you've said to suggest that any other distro is in any way better than ubuntu, other than your personal opinion that ubuntu is 'for noobs' or that other distros are 'flexible' or 'powerful'... in what ways? What specifically is cool to you about fedora or opensuse? Let's get into some details here. I actually got to try out opensuse a few years back to evaluate if it should be adopted for limited use with state agencies, while I supported its adoption then simply because it saved money and I wanted to see linux begin to gain support in this area, I found opensuse to be even more stilted than ubuntu in terms of a user interface that was needlessly dumbed down and tweaked only for the purpose of making it look unique.