Ok, time for some incoherent ramblings on this. My Greek/Hellenisitc/Sucessor books are long since returned to the campus library so I am going mainly from memory. This thread can deal with all factions, but the barbs and Hellenistic factions are the ones I am most familiar with. So here goes:
Cities that should begin with highest barracks
Gergovia: Capitol of the powerful Arverni, Gallic lords of the southern Gaul (Aedui were masters of the center, Belgae the north) and site of Caesar's first known defeat
. Having this region with champions will provide the Arverni with at least on city that can crank out some powerful champions and heavy units.
Bibracte: Capitol of the Aedui. This region should have the highest barracks to check Arverni advance, or Belgic advance to the south. Perhaps the most popular oppida in Gaul Bibracte should certainly be tough with a strong garrison.
Bononia: Capitol of the Boii in Italy. High barracks here will help check both Roman and Carthaginian advance
Vindobona: Capitol of the Boii in Central Europe. Other than Dacia, they have no nearby enemies. Thus, a high level barracks should present no real advantage but to help the A.I. and player to break out of their isolation.
Mediolanum: Insubres capitol (sub tribe of the Aedui). Helps to further check Roman and Cartage's expansion in Italy and keep, along with Bononia, the action in southern and central Italy for the Roman and Carthage player
Camulodunum: Capitol of the Trinovntes. The Belgae in Britain can receive a check by giving this city a powerful garrison.
Numantia: Pretty much everyone knows this should be a Celtiberian fortress par excellence
Alexandria: *The* place to be in Egypt. Core center of Hellenistic power and should field all the best Ptolemaic troops.
Antiocheia: Western power center of the Seleucids. Should field all their elite troops easily
Seleucia: Eastern power center of the Seleucids and the whole region was a great fertile swath of civilization for Persia. Player/A.I. should need elites here to hope of facing down Parthian HA's that will sure to arrive.
Tavion: Center of the Trocmi Galatians. Galatians were beaten many times in battles against foreign armies and defeated those foreign armies many times as well. Never truly conquered by Rome, Pergamon, Armenia, Ptolemies, Seleudis, or anyone else. Think the Numantia of the Anatolian plain perhaps. Rome eventually annexed the region peacefully though around 25 B.C.
-I assume that the cities of Roma, Carthage, Pella, Athenia, Sparte, and Pergamon are already mapped out with what they need.
-There may be a need for ideas with Dacia, Sarmatia, and Scythia seeing how they are all very close geographically.
Anyway thats my 2 cents. Feel free to discuss...