Here's an Idea..How about making GW random across realms....Guilds sign up to fight but could end up fighting any guild on that server. I think this will stop a lot of Big guild collusion. For instance Uber Guild from Forest may face off against Uber Guild from Light. so instead of choosing the city you wish to fight for or defend Tynon randomly chooses for you. I think this will also stop bid blocking by these alt guilds.