Put a few hours into
Shogun 2. Playing on Hard. It's tough. But so good.
Started a new campaign as the Shimazu clan, since traditionally in the first game I always started on the western side of the map. Pretty good starting province in the bottom left corner of the map, sandwiched between two other clans, one to the north (Sagara clan) the other to the east (Ito clan).
My first order of business, other than building an army and maintaining my province, was to negotiate an alliance with the Sagara clan to the north, to this end we agreed trade and to cement affability I wedded my eldest son with Sagara daimyo's daughter. Since the Sagara are renowned for their loyalty and honour, this could be a long and fruitful relationship. This leaves me free to concentrate all my military expansion to the east, against the Ito clan, without having to worry about Sagara clan making any moves.
So having built up a relatively large garrison of about 2000 men, I send them out east. I take all three of Ito clan's provinces with relative ease. Things are looking up. But not for long. Apparently, ANOTHER clan, the Shoni, have declared war on me, and are moving in from the north, since they're allied to the Sagara and have military access through their borders straight to me. I don't even have military access, and we're supposed to be family!
Okay most of my men are out east trying to keep Ito rebels down from the newly captured provinces there. Okay, I'll just ask the Sagara clan to break their alliance with the shifty Shoni clan, we're family right? But since the fuckers are so loyal either way, they won't do it, and I don't have any money left to bribe them either. No matter, the Sagara will pay for this slight soon. Just as soon as I take care of Shoni clan.

I must prevent the incoming Shoni from taking my main province, so I move the whole of my garrison from the east back to hold the fort against the onslaught from the north. This means I have very little resistance against an uprising from Ito rebels, and wouldn't you believe it, they manage to raise a huge army of about 1500 men and overthrow my tiny garrison to take back their land. Bah.
To cut a long story short, I defeat the oncoming Shoni force. The Ito attack me from the east and I still manage to keep my fort. The saga of Shimazu clan continues...
Defending the fort against Shoni clan:

And that's 5 hrs into the game. It's pretty great. As you can see, campaign AI is pretty ruthless, and battle AI is much, much improved over the previous games. Also, haven't run into any bugs or game crashes yet! It's a miracle. I remember Empire bugging out in the first hour, ruining the campaign mode for me.
Also, I have the worst ninja eva! I sent this punk out on like 5 missions already and not one success! The best he can manage is a wounding when I send him out on assassination missions and he can't sabotage worth a shit. It's a wonder he hasn't been caught yet! I still wub him tho, he's my first ninja. He'll come good soon.