I think that's a VERY harsh interpretation. Nine wasn't sociopathic, and his reactions to the Daleks seemed less a "I must exterminate every last one of you" than one of shock. After all, his own people died in that Time War, but the Daleks always survive (as Ten would later say). His reaction in "Bad Wolf" was even one of fear and defeat, initially, and he continued that sentiment even if he hid it.willofbob said:9 is a sociopathic war veteran, bent on the destruction of the Daleks.
Was he hateful towards the Dalek in "Dalek?" Yes. That's not the same as eing a genocidal maniac, though.
Dark? Yes. Angst? Not really any more than Ten. But these were not is sole defining traits, and a sociopath, he weren't. Battle-hardened, maybe even shell shocked.
Also, you left out Ten's use of "brilliant" as a catchphrase, which goes msot of the way back into his tenure.
But seriously, there's more Angst in The Family of Blood episodes than there is in Nine's whole run.
Who do I like more? Don't know. I like all three. I think if Ecclestone had had more time he'd be brilliant, and I think Eleven is probably better than 10, but scripts in the last season have been kind of making it hard for me to definitively say him.
So I don't know.