Simple solution to the crazy pubstomping going on.
If a monster wins, give him more points than usual. This will shoot them up the ranks, so that there are a comparable amount of monsters up top to fight the premades. Right now, there are a few hunter Gold Destroyers and no Monster Gold Destroyers.
The rankings are totally favoring monsters at every level right now. The more people that player, the more this might even out, but I think that giving monster wins more points so they move up faster will even out the matches better.