I adore Due South--it's just so lovable, and I have a mad crush on Callum Keith Rennie! But Slings & Arrows is so absolutely amazing, as well. Both make you laugh and cry and fall in love, but I think S&A is, well, better done. DS had longer seasons, less budget (I'm guessing), and less of a story through-line, so the seams show a little, sometimes. S&A is tighter, and more consistent in its storytelling. (Plus: Shakespeare!!!)