No doubt, its gonna be Rome. They tested how they could do it with Shogun, then came Rome. Now with new advances in shogun 2 they will work them out and apply them to Rome 2. I hate to say this, but Shogun is kinda like a tester to see how far they will be going with Rome so things might not be perfect, I pry to god its no where near as bad as empires release but from what I have seen it looks very solid so far. The first Rome was very huge and had awesome units so Rome will probably take a while longer before release. I am guessing like 2 to 3 years, unless they cut down a little but I doubt that they would seeing its CA and all, one of the last game studios that has my personal respect.

as a side note to Rome, I loved the burning pig units and the crazy women that would demoralize the enemy with its annoying howling! :)