The Simpsons.
They have been with me since i was a child, and they have been good since. I didn't like the season before last as much as the others, but this most recent season was good in my opionion.
Futurama is a close second because it has great characters, its funny, and i love to watch it. I used to watch it everday till i saw the majority of the episodes.
Family Guy is last in my books because its very reptitive and boring. South Park was 100% right when they made their episode. I followed the formula and picture a family guy episode.