I'd like Rito to stay away from ARAM. There are strong champs and there are weak champs - but there are times to play any of them.
Overall game balance is welcome (let's assume it's done well, haha) if champs are just plain too powerful, but I don't personally like to see changes for ARAM specifically.
I'm sure there will be people who disagree - I've actually not wanted bans in ARAM and am glad they're gone.
It's important to note that the randomness is a balancing mechanic in the game; there are comps who have high chance to win and are diffult to win against (IT IS POSSIBLE, THOUGH!).
The two biggest reasons people lose games in ARAM is that none of them want to play helpful champs, such as tanks, or they give up before the match is decided (which is precisely when a nexus blows up).
My thanks to the people who mentioned MMR, this made me check mine.