Daredevil and Jessica Jones are the bests hands down. If I had to choose one I would go with Daredevil. Luke Cage would be my third and while Defenders did have problems mostly at the beginning and the end it was still worth seeing to see these characters from separate series' team up. I don't hate Iron Fist but it felt like a rehash of Batman Begins, Arrow (Season One) and Doctor Strange all at once and the characters weren't as likable as the characters from previous shows particularly the main character himself for being kind and naive.