A QOL buff idea that I think everybody will agree with, has to do with healing.
This would be a totally optional change you can enable or disable in options menu. The change is to show how much health you heal on your spells or autos if it normally would not show the number.
If you have 3% lifesteal you won't be seeing how much you heal with your autos if you aren't doing a lot of damage per autos, but some people like to see a +3 health on their autos and it can HELP them when deciding to fight an enemy in lane or not get executed in the jungle.
The counter argument for it being too cluttered is that this is a totally optional thing you can change in your options menu in game.
"This dumbs down the game too much, season 2 was better xd."
Not only does that not make sense but this change would open tons of play making opportunities for players to make crazy plays in lane or to figure out if that 1 auto that heals for 2 health is worth losing 100 health for a minion.