>>110553747Best season is probably 2. They had a ton of energy and had ironed out the kinks from season 1.
S1&2 were both great though. After that it felt like the concepts started meandering around and they weren't sure what they wanted to do, so you had a lot more halfbaked or just plain weak stuff over time.
I'd say worst season is 6. Like South Park, they decided they needed to do a totally serialized plot because everyone else was doing it, and the comedy, characters, pretty much everything suffered because of it. S7 was better largely because it went into a lot more fun one-off ideas, instead of putting all their eggs into the serialization basket.