One thing I hate about Family Guy is overused jokes like Bird is the word.
I hate it when Family Guy decides to go with overused jokes. It bores me.
I know The simpsons is currenty on season 23 and is gonna have at at least 25. South park is at 15 and will have at least 20.
Anyone know about Family Guy and Futurama?
I like all of them.
I love the simpsons,but i think it has been going downhill recently.
Family guy,is ok , but sometimes gets boring if they drag some of the jokes on for too long.
South park is quite consistant,but some of the jokes can be quite offensive.
I’m gonna vote for fururama! (mainly because it is the only one that almost made me cry. 
)
I would have to say South Park out of those three. Although, I haven’t really watched The Simpsons in ages so I can’t explain my thoughts on it. Family Guy can be funny ocasionally, but it’s not a good show.
I know some of the members here like King of the Hill.
The new episodes of The Simpsons are getting better. The newest episode, in my opinion, is the best episode they’ve had in awhile, and I’ve enjoyed all the season 23 episodes so far. I watch Family Guy sometimes, but I don’t like it as much as I used too. South Park on the other hand, is my second favorite. My favorite episode is probably “The Humancentipad”.
I preferred the early seasons of the Simpsons. Nowhere near as obscene as South Park, for instance, though the movie does get disturbingly close. 
Frever and always South Park. I also really enjoy The Simpsons and King of the Hill.