KDE
+Looks pretty.
+Highly customizable.
+Most Linux programs written for the X display are designed for KDE.
+/-Lots of eye-candy and useless utilities.
-SLLLOOOOOWWWW (unless you have a mighty kick-**** computer).
-If you're running 6 or more programs throughout the multiple desktops, it can slow down to the speed of a McDonald's drivethrough on 4:20.
GNOME
+It's fast (doesn't matter if your computer is high-end or not).
+On a Pentium II 450MHz, I've only noticed it slow down if I was running 20 or more programs scattered about 4 virtual desktops. :cheesy:
+Has better looking visual themes (they're alot cleaner in appearance).
-....I can't really think of any downsides....
FINAL CONSENSUS
For functionality, stability and perfect for everyday use, go with GNOME.
For the Windows convert who loves their pretty looking window managers, KDE.
For functionality, stability, perfection for everyday use, and pretty cool look, go with FluxBox (or BlackBox if you wanna kick it old school). :mrgreen: