openSUSE 11
The installation process for openSUSE 11 is quite impressive. LVM, package selection, desktop selection etc. were all top-notch without any hiccups (unlike my past experiences with Fedora). Post-installation set up was quite smooth as well, except for the part where I wanted a static IP — took 15 minutes to figure the GUI for that out. Seems more geared towards network administrators than end users.
I can’t say I expected the green to be pleasant, but I can’t complain — looks very nice. Overall, solid stuff.