[{quoted}](name=I mute all of U,realm=NA,application-id=3ErqAdtq,discussion-id=q8B1JEaq,comment-id=0001,timestamp=2016-09-11T17:27:59.508+0000)
Shaco is easier to play.
Lee Sin is overall better if you have very high level mechanics.
If you like to split-push Shaco is your guy.
If you like trying to snipe primary targets then Lee Sin is your guy. However, to do that reliably, you need to probably play Lee Sin and nothing but Lee Sin for a loooong time.
Shaco is not as mechanically intense or flashy but the game knowledge it requires to do well enough as Shaco to justify using him over Lee Sin is tremendous.
There are also subtle mechanical nuances to Shaco, such as dodging projectiles with your ultimate, controlling your clone to mislead people and so on.