I always use 0 turn recruitment for every unit. As expected the larger factions had super elite troops while the smaller ones used more cost efficent ones. But that can actually be fix by upping the recruitment cost and upkeep of all the elite troops alot. Its then 50/50 as to what the AI will do, sometime it will just recruit less elite troops sometimes it uses more moderately priced troops. Keep tweaking it and if you stumble onto a perfect setup (every faction big and small using a good mix of both cheap and elite) im sure you could make it available and have lots of people downloading it. I have yet to perfect it myself.
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