+1 for making guild smaller, it's not totally about skills here, I have become tired of getting same opponents again and again over the pvp que, and what's worse is that because of the fact that the que dead people change team immediately depending on their previous opponent and cteam them, Idk about you but I have experienced this way too much, making the guild smaller will help alot, because then each smaller guild will need to push their own ratings to even make it to top 10 as the exp boost does help for level up, and if you look at the larger guilds it's around 60-70 people at max who pvp and carry the guild other stay inactive or receive help from experienced players.
Also +1 for clan wars and increasing the rewards.