Well, when discussing Sid, I went to the guru (our technical consultant, and an 'OK' player

), Aeson.
His view from his playing is that Sid is simply too random - in short, in the early game, a 'bad' RNG and the AI simply decides to smoke you, and that's the game over and done with. Not a very meaningful way to compare strategies between different players, because only the very good ones will have any chance, and even the very good ones have a chance of being wiped-out early on through no real fault of their own.