As we all progress into the further end leveling point, you find yourself that there is all spots taken, is there a way to combat these problems?
AOE wise it's near impossible, at a certain point of time there can only be 5 AOE leveling and all others spots are not that much attractive to begin with, cause it's not the same.
personal solution A:
add more channels, more high end players can play and less populated server , less lags and server overload
personal solution B:
add much more monster density at Captain Hellhounds to allow much more players to level