Family Guy has been hilarious for so long but I feel like it lost it's sharp and random humor at the start of season 6. Although I enjoyed Blue Harvest, it felt like the remaining episodes were "wrapping-up" - episodes where the producers made little attempt to fulfill Family Guy's reputation of American social satire.
I have seen all the episodes from season 7 and I was utterly surprised and happy that Family Guy has found their true colors again. Season 7 delivers a lot of fantastic episodes and with a lot of jokes about the current situations in America which is exactly what we need right now - more fun.
I feel that the Simpsons has lost its spark all together, this show, however, has made a terrific recovery from going down to proving how perfectly satirical they can be. Great job!