Often new Linux desktop user get confused about KDE and Gnome Desktop system. This guide tries to provide the basic differences between KDE and Gnome.
From the article:
This is not, by any means a comprehensive look at the differences between KDE and Gnome, but it should give new users a small taste of their different strengths and weaknesses and their philosophical approaches to usability.
The focus is particularly on Ubuntu and Kubuntu, but aspects of this comparison can apply to other Linux distributions as well.
=> Read KDE and Gnome Comparison - KDE and Gnome Comparison [psychocats.net]
In case if you don't know - You can have both installed together and switch back and forth whenever you feel like it :D