Zach Galifianakis thinks Jack Nicholson's Joker is the best

Actor Zach Galifianakis, who voiced the villain in "The Lego Batman Movie", said no one can beat Jack Nicholson's portrayal in 1989's Batman, directed by Tim Burton.
The Joker, Batman's notorious foe, is one of the most iconic villains in cinema history, but they'll always be debate
over whose portrayal is the best.
Some prefer Heath Ledger's twisted take from the Dark Knight, while others opt for Nicholson's more cartoonish version, reported Contactmusic.
Speaking about his love for Nicholson's portrayal, Galifianakis said: "The randomness with which Jack Nicholson played that character, the non sequiturs he says in that movie are so funny and Prince actually ended up using a lot of those non sequiturs in the soundtrack and that's a great album."

Along with Nicholson and now Galifianakis, The Joker has also been portrayed by Cesar Romero in 1966's Batman and the original television series, Ledger in "The Dark Knight" and most recently by Jared Leto in "Suicide Squad". The character is also voiced by Mark Hamill in the Batman animated series.