What I believe would fix the jungle
The damage that the monsters deal is high but it is fine. It doesn't need to be nerfed or buffed. The only thing that is currently wrong with the jungle (IMO) is that it doesn't give you enough XP for it. Notice how on hunter's machete it says "+15 bonus gold per large monster kill" and on the upgrades it that bonus gold doubles. What if there could also be bonus XP given per large monster slain? X amount on Hunter's Machete then 2X on the upgrades. That way the jungler wouldn't be 2 levels behind the bot lane. Currently the jungle deals much more damage than last season but doesn't given enough XP for it. I believe that with this addition to the jungle items it could end this "Jungle too OP pls nerf". Also you might be asking "Hey why not just make the XP that the monster gives higher?" and i'll tell you. That way so laners won't take them to get ahead. And if laners do take your jungle camps you won't have to worry about getting behind.