In the Play Queue, allow the player to choose cards or colors to "ban" for their games. For example, if I don't want to match against Monstrous Rage and Manifold Mouse, I can select those cards for my personal "ban list" and I won't play against them. I think of this like kitchen table Magic where you set your own house rules with your friends. Queue times may be longer but I would trade a longer wait time for a more enjoyable experience.

Of course leave the Ranked Queue for competitive play as is.