Yeah, I won't even try to deny that most recent episodes lack the proper character-to-audience connection that the classic episodes have. But every so often, the show surprises me ("Eternal Moonshine of the Simpson Mind" was a good example of Homer at his best in a long while). Meanwhile, "Family Guy" is just an ensemble of jackasses, and if the writers are to be believed, that's not going to change. And even in spite of the mediocre episodes that "The Simpsons" puts out, you can still tell that the show's writers care about what they do. With "Family Guy", it's more like they just don't give a damn about creating a quality TV show, just so long as they cram in 22 minutes of cheap laughs.
I agree that "Family Guy" is not directly derivative of "The Simpsons", as many people have pointed out. But if anything, I think that's one of its problems - it needs to be more like "The Simpsons" in terms of plot and character. The Griffins need to stop being jackasses to one another and become real people again. I don't want 22 minutes of non-sequiturs and pop culture references surrounded by a plot that goes nowhere and characters that I hate - I want stories that make sense and characters I can care about. Why is that so hard for this show's writers to do?