Keith Olbermann is a sadist: “Please, Waterboard Sean Hannity”
 "my goal was to make O'Reilly go nuts"

Keith Olbermann is a narcissist: “"Tremble, onlookers! I am the anchorman”
"John McCain, you sir are not a war hero.   Look at me. Drink it in. For I am true heroism risking my life by speaking against the powers that be. And people think you're a hero?! How dare you sir, HOW DARE YOU!?!?"

Keith Olbermann is a misogynist:  “Without [hatred] Michelle Malkin would just be a big mashed up bag of meat with lipstick on it.”

Keith Olbermann is a Plagiarist: Olbermann Fails to Credit Mediate

Keith Olbermann is a hypocrite: Olbermann Fails to Credit Mediate While Slamming Drudge for Thievery

Keith Olbermann is a liar: Olbermann has enjoyed repeating Murdoch's claim that News Corp has "never been a company that tolerates facts." Murdoch actually said that News Corp has "never been a company that tolerates fat”
http://www.youtube.com/watch?v=im57c6fJBqM

Keith Olbermann is immoral: “You can’t in this world today I think behave morally correctly at all times. “

Keith Olbermann is on drugs and hallucinating: “I haven’t met a lot of flying monkeys at NBC.”

Keith Olbermann is a racist: “Albert Bell, today’s Worst Person in the World.”
"if it comes down to the last day and you're the only superdelegate? ... Do you want to go down in history as the one to prevent a black from winning the White House?

Keith Olbermann is ignorant: http://volokh.com/posts/1221792170.shtml

Keith Olbermann is a sexist who promotes rape:  “somebody who can take her [sic Hilary Clinton] into a room and only he comes out.”

Keith Olbermann is a bigot: Keith Olbermann cried “Racism!” on the Massachusetts special election, and cited Scott Brown’s pickup truck as an example.

Keith Olbermann is stupid: People are guilty until proven innocent - http://www.youtube.com/watch?v=sO3Tavt9tj4
Cannot understand English: http://homepage.mac.com/mkoldys/iblog/C1049953760/E697653132/index.html

Keith Olbermann is a conspiracy nut: “CIA Deliberately Buried Crotch Bomber Intel to Embarrass Obama Administration”

Keith Olbermann is a fraud: Keith lies about his nonexistent "Ivy League" education (Keith didn't go to the Ivy League Cornell; he went to the state college at Cornell, the College of Agriculture and Life Sciences.)

And those are apparently his good points.