well, they should have some bonus, maybe ninja? they did have Hattori Hanzo and his Shinobi clan. Tokugawa also had Tadakatsu Honda, which even Oda Nobunaga envied him for. I personally think that Tokugawa should be the more well rounded, balanced faction of the lot with only a ninja bonus due to Hanzo and that's it. Like that it would make it more interesting because it would simulate well the idea of Tokugawa having a weak fledgling clan and building it up to be so powerful that not even Toyotomi's son's troops can rival! Ishida Mitsunari got owned by his own army at Sekigahara, guess he shouldn't have had traitorous allies eh?