I watched south park when it first came out thought it was cooool at primary school I had an "i killed kenny" lunch box lol I was 9 and i remember one christmas when south park had a song that went to number 1 something about balls? lol loved that.
BUT family guy is genius, since there is some english humor in there i get it more. There is alot of episodes that contain England,stewie has a british accent although still uses terms that americans use, although it is very stereotypical it's really funny, I could get off to mcfarlanes voice.