Xfce has been dropped from Fedora Core 4. According to Bill Nottingham of Red Hat:
thats really a bad idea :(
Also both these require more than 150MB in package form. Xfce, in contrast, aims to be lightweight and fast, and is only around 40MB in package form. There is not duplicality in this ! .
thats true.... i used XFCE before, though i struck with KDE these days..