I wanted to write a review about Sengoku, but then I realized that writing reviews isn't really what I want to be about...it's too impersonal. I might start a blog or something very informal.
Anyway, I got myself Crusader Kings 2.
A real step-up from Sengoku and Crusader Kings 1 and might be worth the cash if you are a Paradoxian. It's more up close and personal with you playing a character from ANY CHRISTIAN country in Europe from 1066 onwards. Most of the gameplay will have you marrying, making babies, giving land to heirs, making decisions to gain traits, claiming a throne...and then losing everything again if your heir fails to retain your title. But that's what makes it so fun! Everything is so unpredictable. You will also be pressing the "fast forward" button regularly, if you have a life.
You can by the way imprison or assassinate all your enemies.

It's coupled with a graphically lovable and rotatable map and beautiful textures and a boring repetitive soundtrack.
Some extra info:
-The "Casus Belli"(War justification) system had me disappointed, because you have to fabricate claims(or patronize the pope for approval) before being able to attack! There are land claim casus bellis, but mostly, I get a lot of piety, the pope's hand in war and an alliance with a big nation for extra help.
-You have a demesne size "cap" to look at.(Demesne is all your holdings like castles, vassals etc.)
-Certain royal marriages create alliances
-Sometimes your wife will plot against you...usually she gets all your vassals' support.
-You have to appoint certain court positions for certain duties like - eradicating rebels, converting heretics or heathens and training troops.
-Your army usually consists of hired mercenaries - 300 gold per mercenary army! (not a once off payment)
-The second and third lines of claimants of the throne in your kingdoms are there for pretenders(evil vassals or brother-in-laws/nephews that want to snatch the throne)
-You can also have an independent duchy, so just declare war on your liege.
-You can name your babies
-You can rename your cities
-You don't need to ask for military access to move your troops through foreign territory.
That's all I can think of right now, it's a pretty nice game, got a rating of 8.0 by gamespot.