Lee Sin

Lee Sin is a high threat value enemy because of his high damage potential in early-mid game before you have a chance to become a large tank. His disruption is not that high but if he invades your jungle you will be hard pressed to root him out

Fiddlesticks

Fiddlesticks with his drain basically almost makes it impossible to deal with him in later levels. Early game you can disrupt him and possibly out damage him, but once he gets enough levels in drain you cannot deal with him in your jungle anymore

Dr. Mundo

Mundo poses very little threat by to you as you are going to be stronger than him in almost every point in the game

Amumu

His percent damage will be painful throughout the game but overall presents minimal threat as you will be better equipped to deal with his abilities if you follow the defensive build

Fizz

With all the threats that fizz has been capable of in the jungle it entirely will depend on who is further alone in their build to do more damage.

Gragas

Another new entry to the tanky jungle field, he will be able to move and disrupt you, but very little else as your abilities are better built to deal with him.

Hecarim

Not the greatest match up, his sustain prevents you from getting ahead of him in a 1v1 so fight him in a team setting and melt him away.

Rek'Sai

A low-mid level threat. She can really only hurt you if you are far behind. She has good mobility which works against you unless you can get her on fresh ground without tunnels.

Sejuani

Considered to be one of the roughest junglers available in this patch she can deal with almost everything that you put forward. But with her being such a high ban pick you will not likely need to play against her very often.

Shen

Super easy to deal with.

Rammus

Trundle

Nautilus

In normal (non-draft) I would suspect whomever is using this build and has a decent understanding should come out ahead.

Volibear

Maokai

Skarner

Playing against him in a 1v1 is not a very good idea as he will be able to out damage you most of the time with passives and his shield that comes up faster than yours.

Shaco

High mobility and very good early game damage output means that if he gets ahead and you cannot keep up, you will be held down by him all game.

Jarvan IV

High damage output and the high mobility makes him hard to keep down. His armor reduction also makes him difficult to hold a fight against.