[SelfishGene]

Early Era nations are more powerful magically with better sacreds, but lack Holy, mounted Knights, and x-bows. Death is less common in the Early Era as well.

Since Magic or Sacreds > all in Dominions, in the long run, i'd say Early Era nations would be more powerful on average than LA nations. AI, though of course, do not use magic or sacreds correctly, so LA nations are probably stronger in AI hands.