This is kinda backwards, if you're talking about the comedy. A lot of Seinfeld's bits, while I can appreciate them, assume a kind of everybody-is-fundamentally-the-same-deep-down-inside utopia. And if you're referring to him as a person, he's a firm believer in meritocracy, and that if there's a lack of diversity in comedy it's because the talent lies with white males.
Louis CK the person has "aged" the worst, since we found out he's assaulted women then called them liars and encouraged the destruction of their careers. But his comedy has aged the best -- he points out how women have shit much harder and are under constant threat of violence by men (guess he would know?); he was always quick to point out white privilege and make it a centerpiece in many bits; stopped using "f-" and "n-" slurs years ago; and much more.
I'm not advocating for "separating the artist from his work." But I am saying that if you showed these four comedians' work to young American urbanites who have never heard of them (ha, that's probably not as hard to do as it sounds) then CK's would be the least aged and Seinfeld would be the most.
