dunno what the hype about khan is, i disliked both space seed and wok. space seed wasn't a bad episode, but the pathetic overacting of montalban and the female who fell in love with him undid it for me. fine, stuffing some worm into the ear of chekov was questionable, but so looked dax' symbiont. the augments of ent were more menacing, and convincing.
dukat was a lot better, a man who could swing both ways, good and evil. went nuts for extented periods of time, though. kai winn is my choice, evil to the core, but convinced to be a goodie from her conservative point of view. how good for the galaxy she was the religious leader of an unsubstantial world only.