A game's outcome is not only related to the member numbers, it's more the activity involved. AFAIS, we were mostly matched with CCs of the same success, 1-0, 2-0 etc, then 5-1. Nobody knows if the points gained before are in the mix, too, but it's certain that the opponent must be available when the search is on.
Only once in each of the last two clashes was the match uneven. During #12, we were beaten by a single player (after midnight IIRC), now, we crushed a 6 members CC.
Again, I failed to note the number of members playing, but IIRC no more than 5 in each Clash and 10 - 15 in total.
This will make the difference to the more successful CCs. It looks like 200 of Georgian have played in the last two days - imagine how many points and XPs they have amassed!
(200 players x 50 points x 11 clashes = 110,000 Clash points)