For desktop Linux, no, I'll stick with Gentoo. For the notebook though, openSUSE -might- replace Ubuntu. I plan on doing some testing soon to see if that'll be the case. I think it has a good chance to do that.
I might move from Gentoo at some point, but I can't see it happening soon to be honest. The reason I like the distro so much is that it's almost completely DIY. You build it up from scratch, so rather than have a bunch of kernel modules loaded that you don't need, and having tons of software packages installed that you'll never touch, you build it up slowly and it's essentially YOUR OS.
I really have a hard time installing a distro and seeing all of the software installed that I know I'll never use... and to uninstall it would take a while. It's the same thing with Windows, really. Just take a look at ALL the software installed, much of which will never be touched by most people. It's not just the installed software though, Gentoo offers a lot of great OS tools that make the experience better. I like the Portage package manager as a whole as well... it's gotten quite good over the years.
I treat notebooks a little bit differently, because there, I don't use the distro as main OS, so simpler is far better than complicated. Gentoo isn't always complicated per se, but for a notebook, it seems a bit needless, given you need to compile most everything. That just isn't necessary really, so for me, a distro like openSUSE or Ubuntu is just fine.
