I do like
Orange is the New Black.
The sequence itself isn't anything special/groundbreaking. But after hating the song at first, it's so damn catchy.
Fringe 
(And all of its variations)
Never properly got into the show but
Game of Thrones are nice.
Lost simply for being simply iconic.
Special mention to
Doctor Who and the best theme tune of the new series.
and although the theme tune has only gotten worse IMO, the visuals have gotten more creative...