Mad easy so far ... I picked them because they seemed isolated on an island ... already had 2 heroic victories ... first one really didn't count but the second one was legit I guess ... archers are crazy in this game as you can see from the battle stats im about to post
btw there is a dismount option for cavalry in this game ... which is useful I guess if you need infantry ...
its so stupid ... everyone basically has the same units and the AI just makes giant armies of the same basic units like spear men and archers .... cavalry is useless so far and whoever has the most archers wins lol