To me, Family Guy is a complete ripoff of The Simpsons. Like, really. Both shows star two fat idiots, they both have two kids and a baby... there's nothing original about Family Guy. Family Guy really only has sex jokes, while The Simpsons actually focus on what's funny. I watched Family Guy for ... 3 years now? It never made me laugh out loud even once. Simpsons, however... I've enjoyed for all my life, it never gets boring... and it doesn't repeat the same mannor of jokes that Family Guy does.
I think it's clear what I stand for here.