I would have to say that Season 2 is the best. The first day I got it, I watched it all nonstop. I always had to see the next episode. But like everyone said, if I were you, I'd buy the first just to get to know how each character is portrayed and the basic story lines. Believe me, each seaon is worth buying! The only bad thing is, all my friends always wants to borrow a season and I dont get it back for a while.