Let's see which sub-genre of mystery is the most popular!
I like a touch of humor. Donald E. Westlake is/was a favorite. John Sandford puts some snappy dialogue in the mouths of Virgil Flowers and Lucas Davenport.
I like a touch of humor, too. Donald Westlake is always a winner. Lawrence Block's Burglar series is pretty droll, and I really like Simon Brett's Mrs. Pargeter mysteries. (I'd love to see those put in movie form.)
There are degrees of humor, of course, from witty, snappy dialogue to almost slapstick in parts. Kelsey Browning and Nancy Naigle write about the grannies, a humorous cozy series about elderly detectives. Toni McGee Causey's Bobbie Faye mysteries are fun. Lois Winston's Anastasia Pollock crafting mysteries have some off-the-wall characters, as do Joanna Campbell Slan's cozies.
I occasionally read noir and true crime, although neither is a favorite genre. I really like what I call "cozy-ish" crime. Sometimes these are puzzlers and whodunits, sometimes they are procedurals. I like fast-paced, twisty thrillers but I'm not crazy about gruesome stories. Sorry, that is about clear as mud!