He's done so many great films over the years, and I've seen ALL of them. Here's my list of top 30 Denzel films, with my ranking based on: a) is it my favorite?, b) was it valuable to watch?, and c) how well did Denzel play in it?
Like most people know, he's a master at creating a character and somehow turning a mediocre film into a great one. Not to mention his versatility as an actor, his ability to deliver intense performances or his ability to wholeheartedly live into the character he portrays, making the performance and the film as a whole uniquely realistic, dignified and worth watching.