Simpsons in it's prime was the GOAT show. Everyone seems to cite seasons 3-9 as the best and I agree, though I always stress that the show was great up until about season 11 or 12, just not quite as consistent and a little more zany with its plots. South Park, Archer, Futurama and American Dad are all great too. Family Guy for me only has about 1 season of greatness (season 3) and the rest of it is pretty poor, especially the newer ones which are unwatchable. King Of The Hill is a good laugh but I wouldn't call it great.
Voted Simpsons because those earlier seasons were amazing. Out of all the options it was the only show i would watch on. I only started watching South Park and Family Guy when they were out on DVD or on Youtube, they are both great too though.
Bob's Burgers is SO good and very underrated, I think it's a slow burner but people are catching on to it more and more, you either love it straight away or it grows on people but it's starting to break through (thankfully!) ... the show is awesome!!
Beavis & Butthead have always been consistently good, even the newest season from 2011 was absolutely spot on!! I adore this! King Of The Hill is decent too, do love Simpsons still and Family Guy is good, there was also something on Netflix called Bob & Margaret which was quite good too.