Sorry, I don't have time to talk about our AI atm, but I was not aware of there being an AI in Empire Total War.
ROFL. True too. Every iteration of the TW idea promises 'revolutionary new AI' and every time it's bullshit. Empire is nice to look at, and fun on a tactical level, but the strategic AI is just as confused as ever, prone to mindless repetitive shuffling, and appears to benefit from huge 'blunt instrument' advantages over the player.
Still better than Medieval II where the whole map was full of stupidly vast AI armies, no peace ever seemed to hold more than a couple of turns - and yet it was too stupid to assemble a force that was well-balanced or to defend its most crucial strongpoints, so that even a n00b like me cut through each one like butter.