Leaderboards based on Clan War wins
This makes so much sense that its probably been suggested a bunch of times. Its simple to explain too, this game is called "Clash of Clans", so why is the leaderboard of clan tournament based on amount of trophies each clan has? This makes absolutely no sense!!! A trophy is more of a personal achievement rather than a clan achievement.
The only effort put into this is top clans like "Mega Empire" recruit high trophy count members, it's also impossible for new clans to get on top.
With Clan War Win leaderboards, each season a new clan can have the chance to win if they worked hard enough for it.
There would be leaderboards for each of the clan war sectors ( 10 v 10, 15 v 15, 20 v 20, ETC). Same season lengths, at the end the clan with the most clan wars wins in each sector gets a gem price divided into the amount of players of the sector they won. Also, if multiple clans have tie wins the tiebreaker would go into attacks won in wars during the season, followed by stars achieved per attack. This is already tracked so it should not be hard to implement.