Right now I'm really enjoying Game of Thrones, The Walking Dead and House of Cards. Those are my top shows, the ones I alter my schedule for, but I watch many more of various genres. For instance, I typically enjoy dramas.. but I love "Empire" as well. With me being a confused millennial, "GIRLS" is also one of my current favorites.
The Americans is also really good. Netflix just introduced a GREAT show called "Stranger Things".. I recommend this show to anybody that grew up in the 80s, you'd love it.
I was really into "Entourage" growing up... which says a lot about me since I was basically a kid (13-18) during that show's run. "The Wire" is a favorite of mine too. Another graphic show that I'm realizing I was too young for, but I used to watch it with my dad...