Getting matched against 2 premades makes me log off everytime. What makes it even worse, it will often be 2v4v4, or 3v4v4. Everyone agrees. Except for the people on here that will tell me to "get good", (they are on a different planet).
Here's a suggestion: STOP DOING IT.
You should also consider making 6v6 battlegrounds. Not the traditional 4v4v4. People will seriously enjoy the different format.