If you *really* like Bad Santa, and want more raunchy Christmas humor, then BS2 might be for you. I say "might" because there were times I just didn't feel it, and BS1 is a holiday standard in our home. It carries on the tradition, but not as well as the first movie.
In the first movie, Billy Bob (Willy) was Bad Santa, and he was the focus. Here, he's almost a bit player and not so much of a Santa anymore. The Kid (Thurman Merman) doesn't have the same innocent impact he had in the initial role. Marcus is back, but there are no surprised here anymore. Kathy Bates shines, but seems limited by the script to be nearly a 1-dimensional baddie. Previous luminaries like John Ritter and Bernie Mack are missed, as their stand-ins just don't have the same gravitas. Sue's replacement, Christina Hendricks, does a decent job, but the acting seems a bit forced.
Overall, I enjoyed it, though I thought there were some scenes that were over the top just for the sake of shock value. Sure, the first movie did that too, but there wasn't anything to compare it to at that point. This film suffers from a 13 year gap that tried to keep the charactesr fresh, but new audiences may not have a history with the original 2003 film. Bad Santa 1 will always be a top 10 Holiday Movie for me, but BS2 may only be something I watch if it is on and I happen across it. Long live the original.