Tanky Junglers are far too strong
Between CotC which is so OP even some carries take it
, the massive exp, the impossible clear for squishy junglers that normally could deal with them through kiting and gank'n'spank tactics. But most importantly the insane value of having essentially 1.5-2x the farm value of lanes without the concerns of trading and last hitting. Jungle has become literally just a freelo wasteland of hyper tanky monsters, who just spam a clear and gank cycle that makes bottom lanes a nightmare, while putting themselves 2-4 levels and 500-2000 gold ahead of laners.
Given that bottom lane is gated by exp sharing and trading with one another. The jungler that does better is just 100% assured to win bot lane so their Vayne Caitlyn Twitch ADC gets fed and first tower blood. Resulting in a miserable landslide that is honestly painful to lose and boring to win especially on top island.
Right now winning means your
did better than their
and thus is perma farming both sides of the jungle giving them more CS and gold than an 'AFK' Nasus vs a Zz'rot portal.
The solution? Short term, nerf CotC and trash jungle exp/gold. Compensation buffs to weak junglers to bring their clear up. Buff towers.
Long term? Rethink keystones, jungle design and how tankiness with damage should function to be fun and fair. Buff towers.
Sincerely. Tanky jungler main. 

in normals to try and get better. I've generally been a
jg main.
or