Family Guy is targeted at a less intelligent crowd, though.
I actually prefer the Simpsons, but after watching it for a decade, I found better things to do with my time.
Me, personally, I dispise Family Guy, and all the characters except Brian (the dog). But that has a lot to do with the people who introduced me to Family Guy. Specifically, one guy that I couldn't stand said, "Hey Matt, you're cool like me! I bet you love Family Guy!" therefore cementing my intense feelings of hatred associated with it. And then my ex-girlfriend and her stoner loser friends would watch it in running marathons and laugh about how avante guard they were and how 'no one else got it.'
Le sigh. They were everything wrong with the world. Seriously.
Anyway, I think the Simpsons still have some incredible writers, and I know that the animation and style associated with the show have increased drastically. I'm afraid that no one will go see it because they're 'family guy' people now, or because they are like me and kinda stopped watching so much TV like six years ago.
-kv