I love each season and movie, but the first season is still my favorite.
imagine a heist story with the coolest asskicker you've ever known (we'll just say Geralt of Rivia for this example, or even Saitama Onepunchman works too), but you and the rest of the characters have no idea who that is or who this guy in the group is.
the heisters and the audience find out in bits and pieces over the course of the first season who this guy is and what makes him so badass, and it all comes together in the final minutes of the last episode, it's so good