I'm surprised, but pleased, that the reactions are so lukewarm. Everyone at school goes apeshit over this show, when it's never been close to as good as The Simpsons. There were a few bad seasons for the Simpsons, but the last two or three have actually been pretty solid. It's the first two or so years that aren't that great. Seasons 4-9 are excellent.
But yeah, Family Guy is overrated, and they use the same gags way too much, like the brief flashbacks. That's just lazy writing where you can't get a joke to fit in the storyline at all.