LP Adaptation System
Across league of legends, there are quite a few brain dead champions. These are champions that are generally believed to be low-difficulty, simple, easy champions. In the shop, a champion's difficulty is displayed. This should be used to adjust how much LP people earn for winning a ranked match. It's stupid that people are playing low capacity champions like Veigar, Yi, RIVEN, etc., and winning their games because they're playing brain-dead, op champions. Anyway, the easier your champ, the less LP you should receive for winning a match. The harder your champ, the more LP you should get. It should also be a somewhat significant difference in LP, because 2-3 LP is not much when it comes to the difference between playing a super easy champion, and a mechanically complex champion.
Of course, someone's gonna say "oh what if people just ban the high-reward LP champs?" Tough crap. Do you belong in a certain elo if you can't play a high-capacity champion? Isn't ranking about having game knowledge overall? Not just being good at easy champions?
Some will also say, "why not just ban the champions that you don't like?" Well, each person has ONE ban choice. That's not enough to ban every single champion that I consider to be brain dead. Zed, Riven, Garen, Darius, Veigar, etc. are all examples of champions that aren't very hard to play in MOST situations.
If you wish to disagree with anything on this post, please base it off of the non-opinionated statements I made, because it is arguable whether or not some of the champions I stated above are braindead.