Coupling opponents in battles should be based on the real battle results. Might be grouped by ranking, or by leagues. There could be several leagues (the details may be hidden or not, or shown grouped in a few leagues, like it is done now).

The current influence measure is artificial, not reflecting the real player capabilities. One of the worst results is that just a few players with trillions of points, after moving to a weaker kingdom, doing nothing for the competitions, can easily and forcibly disable the kingdom KvK wins. (and it is actually happening now)