Let's try being reasonable and constructive about the 'Nerf Lee Sin!' whining, shall we?
Now, personally I haven't seen a lot of Lee lately. The times I have, he's done all right, usually pretty good since the meta is in a pretty big flux and thus I'd imagine there's not a lot of people just trying to ride the supposed freelo train, thus the only people playing him are those who LIKE playing him and probably actually know what they are doing beyond "Mash keys, ???, acquire ELO."
However not a single day goes by where I don't hear SOME kind of complaint that he's still king of the jungle, or overbearing, overpowered, or he needs some kind of nerf. Usually these kinds of statements are very vague, referring to LCS Big Plays, and how Riot loves him too much to nerf him. There's never any ideas beyond the occasional 'don't let him hop to wards anymore!' or other statement. Everyone claims it's soooo easy to just nerf him, or it should just happen. I'm getting tired of hearing about it, frankly...
So! Does anyone know what we should do next to facilitate actual communication and discussion and not vague whining? Anyone? Yes Billy!
Billy: "Post up Lee's moveset and ratios and let the whiners put their money where their mouth is?"
......go sit in the corner billy-wait....that's a good idea! Go get a juice box, Billy. You've earned it.
So! Thanks to Billy's good idea (for once), let's begin, shall we?
0 (Passive). Flurry After using an ability, Lee Sin's next 2 basic attacks within 3 seconds gain 40% attack speed and return 15 energy each.
1 (Q). Sonic Wave RANGE: 1100 COST: 50 ENERGY COOLDOWN: 11 / 10 / 9 / 8 / 7 ACTIVE: Lee Sin shoots a wave of sound in a line, dealing physical damage to the first enemy it hits and granting true sight of it for 3 seconds. If Sonic Wave hits, Lee Sin can cast Resonating Strike within the next 3 seconds. PHYSICAL DAMAGE: 50 / 80 / 110 / 140 / 170 (+ 90% bonus AD)
1.5 (Q). Resonating Strike RANGE: 1300 COST: 30 ENERGY ACTIVE: Lee Sin dashes to the enemy marked by Sonic Wave, dealing physical damage including 8% of the target's missing health. Minions and monsters take a maximum of 400 damage. PHYSICAL DAMAGE: 50 / 80 / 110 / 140 / 170 (+ 90% bonus AD) (+ 8% target's missing health) COMBINED DAMAGE: 100 / 160 / 220 / 280 / 340 (+ 180% bonus AD) (+ 8% target's missing health)
2 (W). Safeguard RANGE: 700 COST: 50 ENERGY COOLDOWN: 14 ACTIVE: Lee Sin dashes to a target ally. If the ally is a champion, they and Lee Sin receive a shield that lasts 2 seconds and Safeguard's cooldown is halved. Lee Sin can activate Safeguard on himself to receive the shield, and can cast Iron Will within 3 seconds. SHIELD: 40 / 80 / 120 / 160 / 200 (+ 80% AP)
2.5 (W). Iron Will COST: 30 ENERGY ACTIVE: For 4 seconds, Lee Sin gains bonus life steal and spell vamp. LIFE STEAL & SPELL VAMP: 5 / 10 / 15 / 20 / 25%
3 (E). Tempest RANGE: 350 COST: 50 ENERGY COOLDOWN: 10 ACTIVE: Lee Sin smashes the ground, dealing magic damage to all nearby enemies and granting true sight of them for 4 seconds. If Tempest hits an enemy, Lee Sin can cast Cripple within the next 3 seconds. MAGIC DAMAGE: 60 / 95 / 130 / 165 / 200 (+ 100% bonus AD)
3.5 (E). Cripple RANGE: 500 COST: 30 ENERGY ACTIVE: Lee Sin cripples all enemies within range that are marked by Tempest, Slow icon reducing their movement speed for 4 seconds, decaying over the duration. SLOW: 20 / 30 / 40 / 50 / 60%
4 (R). Dragon's Rage RANGE: 375 COOLDOWN: 90 / 75 / 60 ACTIVE: Lee Sin launches a powerful roundhouse kick, dealing physical damage to a target champion and Airborne icon knocking it back 1200 units over 1 second. Enemies the target collides with take the same damage and are Airborne icon knocked airborne for 1 second. PHYSICAL DAMAGE: 200 / 400 / 600 (+ 200% bonus AD)
Now that we have that mapped out, let's also remind ourselves of what the 'fantasy' is for Lee. I don't know for sure, but I think all you need to do is look at Dragon Fist Lee Sin and you have a rough idea of the fantasy they're shooting for. This guy is your Bruce Lee. He's meant to be that kung-fu action-movie hero who beats up entire rooms of 'highly-trained assassins' with apparent ease. And I won't lie: this idea seems awesome. If I was good at him, I'd probably play him a ton for that thought. Being Lee Sin, playing him, means zooming around like a rocket, punching people in the face, kicking them in the giblets, and possibly tossing out a few badly-dubbed one-liners as you do so. Or at least that's what it seems like to me.
That said, for those of you who complain that Lee has a problem? Have at it. Show me something that can be changed. Not just removed, but CHANGED, to make him better in your eyes, while still preserving what makes him him. Don't just cry 'gut him!' That's a cop-out and you'll never get Riot to do it. As I recall, we as a community helped Lee come to be, now we can help balance him if we're reasonable. You've got costs, you've got ratios, there's a lot here to work with. If you're all such brilliant minds at balance, let's see it.