There should be a Broadway Walk of Fame, similar to the Hollywood Walk of Fame. They discussed doing this two years ago - who knows what's up with those plans.
Leonard Bernstein
George M. Cohen
Betty Comden & Adolph Green
Oscar Hammerstein II
Jerry Herman
Al Hirschfeld
Cole Porter
Richard Rodgers
Stephen Sondheim
Jule Styne
But I also want to inclue Irving Berlin, Cy Coleman, Kander & Ebb, Lerner & Loewe, and the more contemporary writers such as Jason Robert Brown, Ahrens & Flaherty, Frank Wildhorn, Elton John, Adam Guettel, etc. etc. etc.
Basically, all the composers and song-writers. Without them, Ethel Mermann wouldn't be nothin'!
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle