I am not a fan of the current format of club conquest - it is more about which team has the higher summoner score more so than any sort of actual strategy.
If you are the lowest summoner score team, you have no hope and no choice but to sit there and watch the others steamroll you (normally depicted as Green)
If are the highest, you have no real competition and win without a scratch. (normally depicted as Red)
Some suggestions on how to improve this are:
1. Make the conquest system have a lower maximum amount of teams per player for both attack and defence. For example, each player is only allowed to utilise two teams for attacking and two teams for defending each phase. It will allow for more strategic gameplay and less about summoner score.
2. The matchmaking system needs to be fixed. This is probably widely due to the registration problems. Having auto registration is not a good idea as when clubs have less people actually online, they are at a disadvantage. Allow for manual only registration and create matchmaking opportunities out of that by calculating average summoner scores for more accurate matchmaking.
Sorry for the long post. And thank you for reading