Yes. The best troops by far in shogun were yari sam, samurai archers, naginata cavalry, and monks. The other were superflous really. I think it's mainly an AI problem though:

yari cav: the AI rarely brings cavalry
no-dachi: you are rarely short of money because the AI doesn't push you, so easier to go with monks
heavy cav: AI rarely has monks
cav archer: AI rarely has monks or no-dachi, and has trouble using it's archers effectively
naginata: sometimes good for a bridge assault, but the AI can be exploited by other means. Armored yari sam can substitute
ninja and kensai: just for fun units
guns: very powerful actually but I almost never end up getting them because they make it too easy.