Alright, I agree that playing as the Britains are annoying (especially the chariot generals - I hate chariot generals, they die far to easily), and numidia, why bother.

But one faction I've always disliked is the Greek cities - why? every single army ends up looking the damn same! a line of hoplites, with a couple of units of really bad cavalry - boring. At least then hellenistic factions have pikemen and more range of cavalry, makes things bit more entertaining. Usually what makes a faction bad to me is a lack of troop variety, with little hope of getting lots better troops as you progress in the game - thats why I love the Romans and Selucids so much.