Picking Chinese promotes more aggressive play earlier on (farm bonus), picking Spanish is safer for late game (trade + pala). What I also want to know is: At what point in time does the team with the Spanish player get the advantage? At what point in time do the advantages meet? Is there a point in late imp where the Chinese regain the advantage? Perhaps a point (very late imp) where you stop producing trade units, but reseeding farms still is relevant, and cumulated you save more wood (considering the wood could run out on the map itself).
Edit: I had Mayans, Huns and Mongols as for the other 3 civs in mind.
Edit: I had Mayans, Huns and Mongols as for the other 3 civs in mind.