After playing numerous matches in dominion, elimination, and skirmish I keep seeing a balance issues with the opponents you go against which I feel hinders the game.
You shouldn't have a team of prestige 1 with gray gear score going against a prestige 6 purple or gold gear score its a huge disadvantage.
My thoughts to correct this are when you choose one of those game modes you choose your hero prior to joining a game so that you are paired with players with similar gear score.