Take a look at this KDE4 screenshot.
It looks like it merges the GNOME button address bar AND the old typeable address bar. Sweet! Just what I wanted!
The whole lot of screenshots look amazing. Usually such screenshots are more a way to show off wallpaper that the GUI, but KDE4 makes me say I want it.
I tried KDE3 over GNOME, but the blinding appearance overcame the lack of usability in GNOME, so I stuck with GNOME. I can’t exmaplin what is wrong with KDE3 look and feel that is fine with GNOME, although I can say it isn’t the paucity (lack) of being able to do things in general with GNOME.
Another annoyance with GNOME. I want to turn off my grid for my desktop layout but not for folder layouts, and I want the default view for lots of folders or non-image files to be list view.