I might be wrong but I believe Larry stopped writing Seinfeld episodes in some of the later seasons and those were, by far, the worst episodes.
I don't find Jerry Seinfeld to be that funny at all to be honest. His standup act is good for a few mild laughs at best. Jason Alexander is also not funny at all outside of his portryal of George Constanza. David made those two much funnier than they actually were.
TL;DR Larry David might be the GOAT