I couldn't kill Paarthurnax, after Aluin's death, because of this few words:
Paarthurnax: "What is better: to be borned good, or to overcome your evil nature through great effort?", as I personnally have more respect for efforts than heritage.
Not to mention, since Paarthurnax took over as the dragon leader, no dragons ever attacked anyone anymore.
But, the Greybeards are nowhere to be found, and the Blades still want him out of their picture. Which means that great game seems to have simply ended in a very bad way, unless I go console cheating which I never did. And I can't seem to find a way to get any option for some "treaty" at any point... also canceling any radiant quest to locate the few last remaining Words of Power...
Just weird.
Any feelings?