Hi Everyone, I am BenQ. My main champion has been Lee Sin since the end of season 2, in Season 3 I was able to get to gold 1 with mostly playing lee sin only. Thank you for visiting my guide and I hope you learn some things.

Reason For Machete/Utility Build:
If you are new to Lee I recommend you go with the machete/utility build. This is a safe build if you do not know the champion that well.

Reason For Dorans Build:
If you think that you are more skilled with Lee then I recommend you trying the dorans build, this build is risky since your focusing more on ad than resists/tank.
The purpose of going with the dorans build is to focus on ganking as much as possible and to snowball the carries.

Pros

High AD Jungler
High Mobility
Good Sustain W/Iron Will
Great Duelist

Cons

High Skill Cap
Not Very Good In Team Fights
Falls Off Late Game If Behind
Relies On His Team Late Game

Blue Side:
Start with Red Buff, then do wolfs, after that go get blue and off to gank lanes.
Purple Side:
Start with Blue,then wolfs, after wolfs you want to go get your red and gank some lanes.

Where:
You Want to focus on mostly ganking the lanes that are early game champs or champs that have a stun or slow. You don't want to gank a lot for the late game champs because they wont provide enough pressure on the gank and you wont be able to pick up the kill.
When:
You should not even think about walking towards the lane unless the lane is pushing towards your tower or if you see the opposing jungler going to that lane. If you go to gank a lane that is pushed to the enemy that means they will be very close to there tower and will be able to walk to safety without even blowing summoners.

Lee Sins passive gives you attack speed and energy regen after every time you active a ability, when jungling try to focus on auto attacking two to three times every time you active a ability to take full advantage of your passive.
You should be trying to do this in fights also but not if it will slows you down.

The reason Lee Sin is so good in 3s is that most of time, if you win early game you win the whole game. Since Lee sin is one of the best if not the best earlier game junglers. He can help get your lanes ahead and then they will snowball and win the game for you.

The reason you take Golem in 3s is because most teams run a couple CC champs and Golem helps you get out of CC quicker.

Lee in my opinion is the best 3s champ, this season I have been able to get Plat 4 in 3s by just playing Lee Sin.

I hope I could shine some light on how to play Lee. Just stay with him, learn his tricks, and carry everyone. If you have any questions just leave them in the comments and i'll make sure to get back to you within 24 hours. Thank you for looking at my guide.