Quote Originally Posted by Sasaki Kojiro
Hojo is the richest clan
Uesugi is a very close second, though! Even if they lose Shinano right away (which they often do in my experience), they still rake in a lot of cash. In addition, they quite possibly have the most defensible position in the game, so they don't need to spend as much money on their armies. I actually find them to be easier than the Hojo.