Maybe Germany. You'll be relying on their Spear Warband in the beginning, but they do get some good cav later on; even Barb Cav isn't that bad. Economy might be rough, but if you just sit & build smartly without trying to make a huge army (which you shouldn't need anyway), you should be good.
Egypt would be easy, too, but the question there is: Can you *really* live with yourself while playing Egypt? Stupid yellow cheating cheaters....
In BI, maybe the Saxons or the Sassanids. Both can command a "corner" of the map fairly easily. Apart from those 2, the randomness of BI means it's hard to predict how any faction might fare as a turtler.
Bookmarks