Small "Matchmaking change" experiment

So, after reading all the cries about how match making in unfair, that there's a forced 50 that Rito forces on every player, and many others, I decided to make a little game:

Say Riot will take all the ideas you have on how to change the match making system and implement them in the next patch, but with a twist: your 5 most played champs in ranked will be automatically banned by the system, in addition to the normal bans players have.

What suggestions do you have to "fix" the matchmaking, according to the boards, also keeping in mind the rule above.

Post, now: