Season 2 was the weakest of the good seasons. When I was rewatching them, I did however really like the episode with the young couple who got buried alive, which many hated.

Also, I finally got into Breaking Bad. I haven't changed my mind about the 1st season and particularly Tuco. Still can't stand the son. The wife's gotten more interesting, though. And the 3rd season really took off and the new one has been excellent.