Although there is no official list of William Shakespeare's plays in order of popularity, most experts and aficionados agree that his most famous play is "Hamlet." "Hamlet" is also widely considered to be Shakespeare's best play. "Hamlet" is also the most performed Shakespeare play.
Scholars believe that the success of "Hamlet" is due, at least in part, to the fact that it is the most introspective of Shakespeare's plays. Shakespeare wrote the play after the death of his son Hamnet. It is believed that this is no coincidence. Many of the lengthy soliloquies delivered in the play are some of the best insight into the mind of Shakespeare himself.