4. House of Cards
3. Game of Thrones (could move up or down)
2. Sopranos
1. Californication (before this, I didn't like Duchovny much, but he was a master in this)
These are the 4 that I have enjoyed the most, personally.
I am not arguing their artistic merits (there are no Citizen Kanes here), but rather how entertaining they were (are) to me.
Whenever I need a laugh, I just go to Youtube and play a Californication clip......irreverent, brash, sensitive, sobering, occasionally dark, but eventually always uplifting. I would post the link for the opening scene of the first episode of the first season here, but this site is PG, so I will stay within the rules. But that scene in the church with the nun is hilarious and the theme (song) of the whole series, the Stones "You Can't Always Get What You Want" which plays in the background and interludes throughout the series is introduced here.
Hank Moody, the Everyman of R-rated romantic comedies.