The Total War games have been excellent so far.
I didn't buy medieval total war because it was just a clone of Shogun Total War (and sadly, since it was their first installment of the game, they made huge blunders with it, but the game was still fun).
I just hope this new Total War does not have the silly "rules of fighting" (aka, spear beats cavalry, AI never runs out of stamina or gold, fantasy units like battlefield ninja and Kensai, no swordsmen, AI not having the penalty of delayed command (player has to move mouse and scroll but AI could move all 12 units at once..grr), etc etc).