One on one game, large map with a few mountains at the center, some rivers and occasional ridges. Starting position is fixed at opposite corners. Your initial troop consist of one strong unit, (element,gryphon,spider) and 3 one turn unit (elf, scout, crow). Neutrals are +5 cities with a random two turn defenders. You start with 4000 gold !!!! (and so does your opponent).
Question: What would you train at your capital?
I think the answer to that question may reveal the best value unit overall. When there is no time urgency and you have plenty of resources what would you buy?