Forgot to toss in "ed" for the vi[m] v. emacs flame war
Some of us ARE that old
In any such discussion, a sense of humor is strongly recommended!!!!
Here are a couple recent comparisons. Everyone has their favorite, and even authors who try to be fair have their bias towards one DE or another....
standard disclaimer: I don't know either author, but personally prefer kde-DE and run plenty of gtk apps without many issues. kde always had "to me" a nice eye candy look and has transitioned major versions SLIGHTLY less painfully than the recent update to gnome3). That said, each DE has their fans, and solid good points, along with bumps and bruises. http://netrunner-mag.com/?p=2233
Thus, FWIW, The Sabayon Devs(TM) have done a commendable job in expanding the number of supported desktop environments. You can even load just about all of them and swap from one session to the next
Good luck in choosing!