Everyone's complaining about how strong J4 and Lee Sin are...
: and I'm just sitting here giggling.
In summary, people are focusing on the strong, highly picked LCS champions because they're in the limelight. Don't get me wrong, I think Free Win Lee Sin is a lot stronger and more mobile than he should be, but there are other champions out there that can be equally as devastating.
Personally, I've been on a rampage in ranked with Pantheon. Yet no one complains about him, while having a similar-in-function kit as Lee Sin.
I am seeing a lot of these complaint threads just originating from the fact that people try to imitate what they see in LCS. They see lots of Lee Sin and J4 so they play them a lot and generate QQ.