I figured out a way to balance lee sin! Will satisfy, and won't remove ward hopping!
Make him a support ;)
Reduce his damage to jungle mobs by 80% so jungle lee is still VIABLE but nowhere near as strong. I mean think about it...
Lee Sin has 2 vision spells, a shield, an aoe slow, and hard cc in his kit....
Not to mention with ward hoping, it forces him to buy sight stone when not in jungle!
+On a support's budget he loses more of his early game power!
P.S. I don't hate nor like lee. I think of him as neutral.