Early game the AI can be extremely scary, particularly the Taira with white (not gold... Fukuhara?) as they can expand west where there are virtually no opposing clans of any significance to stop them.

However later on in the game the AI does some riduculous things... like armies made up mainly of Bow Monks... why? It just seems the AI has been done very roughly as it doesnt seem to have the ability to build a balanced list.
Aside from the AI I really like Rise of the Samurai.