Is this the worst year for dictators / tyrants?

Wow, 2011 has been surprising all the way. Castro, Bin Laden ,Omar Kadafi and now Kim Jung IL.
I’m sure there are more that need to go but I can’t think of any as large as these guy.
Am I missing any others?
Does it really matter they are gone or are their just junior tyrants in the wind looking to step in?
Can anyone name any others? I’m drawing a blank.