I seem to remember someone saying something recently about preferring GNOME apps over their KDE counterparts--but after a bit of perusing this thread, I gave up looking for it. I'm too lazy.
So, let me just throw this out there for anyone who doesn't already know: You can install and use GNOME and KDE apps regardless of which DE you're using. Almost without exception, I dislike GNOME apps--they tend to look like window$ 3.1 or thereabouts.
But, for the rare G apps I do like, they run just fine on Kubuntu; gParted is one of the first things I add to a fresh install, as I prefer it over K...whatever it's called.