So penalize the big guilds for spending time to manage their guild so that they are stronger, lol get out of that little guild and join one that is run correctly and can make it in diamond
Not everyone in the top guilds just wants to farm and farm. There's a decent share of people that want to compete.
The current meta for points & city growth is farming, so people that do want to compete rather than farm still farm, because that's the only way to compete with players that are farming.
If there's 3 "topdog" guilds and you're in one of them, if you end up with those guilds in one single map you can choose to not farm to put them behind.
( Given that you can corner those guilds alone or have a beneficial alliance )
Though if the guilds are spread across multiple maps, it becomes a farming battle.
" Lowering rewards if a sector is consecutively farmed by two guilds? "
I put the question mark there, because it may sound good at first, but what if there is only 2 big guilds that compete against each other?
They'd be "penalized" for actually trying to cut down the other guild on the map. Plus then you might have less rewards, less siege camps, more traps, making it very unattractive to actually go battle for people that would rather farm, eventually causing a stall.
Then smaller guilds MAY have a chance taking a sector, but as soon as that sector gets taken and the penalty is lifted that's like meat in a shark tank.
Soo.. all in all, there's a lot of ways to solve the problems we have but it'll take more than some brainstorming to get there.