Thoughts on balancing ARAM?

I know ARAM isnt necessarily supposed to be a balanced game mode, but what would you guys think about Riot just doing a simple balance procedure to reduce it from being extremity one sided, as it can sometimes be. I was thinking something as simple assigning champs a value 1-5 based on how good they are in that game mode (IE zyra gets a 5 and something like atrox gets a 1) and make it to were each team has the same numerical value. Just thought it would be a non laborious way to do a quick rough balance to make it a little more enjoyable. ideas?