Mori Motonari, king of kings, fights all his own battles.
Well... with Daimyo anyway.
(Arg, I forget the name of the island right south of Honshu... not the one to the southwest, but.... And my atlas isn't handy)
Anyway, the Mori warred there first and destroyed two weak clans, using primarily the two new technologies of Bushi and Stone Crossbow. In both cases, Mori Motonari, king of kings, engaged at the last his opponent in single combat. Due to his many years of training alone in the wilderness, he was able to best both. He then meditated for many weeks beneath a waterfall on his victories, and became enlightened, and even more powerful. At last he returned to Hiroshima.
Save for the wars on the southwesternmost island, Mori Motonari has fought every Daimyo opposed to him hand to hand in the end. The wars to the southwest he took no part in, for the main offensive was to the east.
As new secrets and wisdoms come into the minds of the Mori, their Daimyo meditates more, trains alone, and becomes more mighty.
(I've never had to reload in an attempt against a Daimyo, either, thanks to being usually 2-3 levels higher than theirs)
When your Shogun gains Assassination ability... if you can get to their capital, which is where their Daimyo ALWAYS is (I wish that could be changed...), you can directly attack their Daimyo and bypass all defenders.
I find they upgrade pretty regularly and are usually at their highest tech level.
I have only two more upgrades to look forward to.
Since the great war began, the push to unite Honshu, Mori Motonari has not returned home to Hiroshima once. The great war began as soon as the troops returned from the southern island, along with an empty army. On Honshu, this was filled with Bushi and the great war began.
5 clans remain: Date, Uesugi, Takeda, those whose capital is Fuji (I forget the name
), and the Mori.
After taking the lands around Kyoto, the war strategy of the Mori changed. They needed no more land. Their mission now is subjugation: a direct attack on the enemy capital; no stops to take other cities. Why? Approaching the domination limit, heh.
Hardest battle so far? The siege of Nagoya. The first siege of Bushi and Samurai Archers failed, leading to the near death of both the Bushi army and Daimyo Mori. Not until the newly built hordes of samurai warriors and Mounted Samurai, both newly discovered, arrived did Nagoya begin to fail.
Easiest? Hojo. The mighty foes the Uesugi destroyed them. They are my greatest rivals; I have the War Council and it's a good thing, because I held a 'practice vote' when I first built it and lost.