Hey JagRoss, welcome amongst the Orgahs!
Also, I share your hate for siege battles. It's too difficult of an endeavour for it to reach an appropriate standard of realism. I have not played NTW, yet I remember watching a youtube clip of a city assault, and it consisted solely of four huge walls and a cube-like building in the middle. As a placeholder for an XVIIIth century besieged position, it must've felt horrible to play through. In Shogun 2 the rudimentary display is at least closer to reality a bit. But then again, the portrayal of Sengoku Jidai always fit the Total War series like a glove, unlike many of the eras they tried to apply the game-concept to since.