Gnome is too user friendly. I want my desktop evironment to have a configure panel (or good conf files, don't matter) with lots of (useless) options and configurations.
Gnome is hardly adjustable. And I really don't like Nautilus. The interface just isn't fast enough. I'd even use that weird XFCE file browser, than use Nautilus. The only thing Nautilus is useful for, is browsing under root as a user, by typing su -
***
nautilus --no-desktop
and don't forget --no-desktop, or you'll get Gnome stuff in your KDE.
Also, I do like K apps, but I use some GTK's like The GIMP, and... uhm... the GIMP.