Yes, Simpsons is a classic, but that's their flaw to me... they're old, I'm bored of seeing their yellow skin... and the D'ohs! were funny for a while, but it's all old now.
That's why Family Guy is better! I've only been watching it for month or so, so it's great! Plus it's a little more random (which is my type of humor).
Don't get me wrong, the Simpsons are great... but we need some changes every once in a while.