Delbruck wrote:...On the other hand, the Republican Roman list of opponents were pretty formidable: the Carthaginians , Macedonians, Seleucids, Ptolemaics, etc.
But your point is well taken, it would be nice (for a change) to see the most powerful empires have at least an even chance in most games. It seems obscure armies (or armies at their weakest military point) are usually given the benefit of the doubt from most ancient rules writers.
I think this is often due to proportions. The Romans were for generations able to field a military colossus with reliable, trained troops. Some Dark Age marauder surrounds himself one summer with a warband of a few hundred, of whom several score are Egil Skallagrimsson headcases (in one manuscript fragment). The armies are then scaled up - the Romans are mediocre grunts, the warband are epic heroes.
I've often thought about the ironies in the typical wargames representation of Rome over the years and at this point decades. The healthy Republic which broke the powers you mention is usually represented as an odd and ineffective thing, like Etruscans on steroids. The late empire -which
actually lost the empire to so-so invaders - is often presented as everything the Byzantines wished they were. It sort of reminds me of those sad WWII games which feature the Germans with Koenigstigers and Me 262s as a 'typical' kampfgruppe.