I'm having hard time choosing my favorite trilogy, most of us do when there's so many great to choose from. Nolan's Batman is up there somewhere for sure, Back to the Future perhaps, Dollars (Man With no Name) and Bourne trilogy are all great in their own right and who can forget the original Star Wars trilogy. When it's all said and done I go back to The Lord of the Rings for one simple reason, it's near perfect in almost every aspect. Great script, great score, visually impressive... most importantly though, it doesn't have a weak link amongst it's movies.

A rather easy choice when it comes to quadrilogy, Lethal Weapon hands down. Entertaining til it's very end, Murtagh and Riggs are also my favorite film duo.