Lee Sin is still the most popular jungler by far.
Even after the nerfs, which did actually reduce his power quite a bit by bringing his winrate down 3%. However, this hasn't changed the fact that he is basically in every game. He's still incredibly popular in competitive.
I'm not advocating more Lee nerfs here. What does that say about the jungle? What does that state about the current junglers and meta that a 47% winrate champion is the most popular jungler by far - it's not even close. Sure, Lee has always been popular but when he's clearly been weak, his popularity has significantly dropped before. And nerfing him clearly isn't going to change that so all we've done is made him weaker when in reality, the issue is largely a problem with the current state of the jungle and meta in general which is largely dictated by the jungle meta anyway.
Lee needs some power shifts in my opinion. But more than anything, this current jungle meta needs to be changed. I think the variety in junglers being rather lacking contributes to that. But most junglers perform pretty decently statistically so the issue is clearly a problem of "sure you could pick x and do well but y exists and can do just as well for half the effort." A conscious effort needs to be made on finding a balance between farming and ganking junglers because we constantly go from farm jungler to gank jungler. And that shit is lame and it impacts the game so much.
Tl;dr
Change jungle, buff other junglers and introduce ways of making more champions viable in the jungle so a sub 50% winrate champion isn't the most popular pick by far in the jungle.


more mobile than him but
even mobile lol? He has to charge his E and he can get cc'd out of it so he can't escape with it , his R has a charge time too.
to exploit it to ridiculous levels.
jungle lately. Turns out, I've been jungling all wrong. All you have to do is kill the jungle faster than it kills you. You don't need sustain or survivability. Burst the jungle minions the same as a minion wave and you're golden.
and could one trick him if i played jgl,but other than that,i cant get myself to play any other jungler,especially the meta ones,Ivern,Nunu (not sure he really is meta but he can be pretty strong in the right situations) zac shaco ww,all of these are pretty annoying to me,the only other champion i enjoy playing in the jgl is nida,again cus shes really fun to me,