After switching regularly between Fedora, openSUSE, and Ubuntu for years, I've finally found a Linux distribution I think I can call 'home'. The lovely Ubuntu 10.04 LTS is it.
I won't go into much technical detail here - by now there will be huge numbers of online reviews picking through the distro in minute detail. Below are a couple of pictures of how my desktop looks on my Acer Aspire laptop. I love the new Gnome theme, and choice of backgrounds. In my opinion this is the closest a Linux desktop has come to rivaling the sleek lines of Mac OS X, and maintaining an original modern look. And I like the new window control position in the top left corner. I tend to drag windows off to the right of the screen to temporarily hide them, so having the controls still visible, poking out from the edge of the screen when I do so, is just better.
Behind the scenes, everything seems to just work: apps install easily through the Software Centre; security is handled by the reasonably simple ufw firewall and Apparmor; and it all happens really fast, boot and shutdown especially so.
I've also installed Ubuntu 10.04 on my HP Mini 110 netbook (the full desktop, rather than the netbook remix) and it runs beautifully. Additionally I've upgraded my media server to Mythbuntu 10.04 from 9.04, and all is well. Finally, I have tried Kubuntu 10.04, but have yet to commit it to hard disk - Ubuntu's new Gnome theme is just too nice to leave!
So, go try it - it's awesome. I'll leave you with a couple of screenshots and an obvious 6 May pun: Ubuntu 10.04 LTS get's my vote!