I think it's time to finally change how XP is split
We need to make is so the jungler is not hitting level 6 by clearing like 4 camps and just ganking. I think the only way to force that is to change the xp system. As most of the time you care about XP you are in a 1v1 or 2v2 situation. The jungler should not be hitting level 6 before bot lane if he only clears 4 camps and then proceeds to just gank lanes.
Ganking lanes should be a choice not a necessity. It's really breeding the 3v3 and 4v4 bot meta. I feel that in order to prevent this from happening the XP for being in lane with 3 or more people should be reduced.
The current xp breakdown
Two champions each gain 65.2% Three champions each gain 43.46% Four champions each gain 32.6% Five champions each gain 26.08%
Making it always somewhat more beneficial for everyone to be grouped but to allow bot lane to survive as the game scales.
XP should probably be split into something like this:
Two champions each gain 60% Three champions each gain 38% Four champions each gain 30% Five champions each gain 23%
But to compensate supports should be given xp gain on their items per 5s and minions are worth a small chunk of xp on last hit with base xp being dropped slightly.
I think this would encourage more farming of the jungle instead of just using it as a spring board for a quick level advantage early for easy kills.