Finished it moments ago! Wow, what a finale. Those final few moments were incredibly powerful. Also, the moment between Capone and his son was really touhing as well.
Season 1 was awesome. Season 2 was mostly awesome, but I was getting worried by the end when they started to make Margret annoying because she was my favorite character through seasons 1 and 2. Season 3 had good stuff in it, and ended on a strong note, but is easily my least favorite season. My binge grinded to a halt at that point because I just wasn't enjoying the show. Season 4 was really good, and season 5 has been great through and through.
Still, season 1 probably remains my favorite.