I have no problem with the portrayal of Woltz by Mr. Marley. Nor with his final monologue before throwing Tom out of the house. Both are excellent.

However the subject line...in the form of a question by the way...was as to the best monologue in the movie. (The Godfather to be exact, not GFII or GFIII)

And I still agree that for depth, poignancy and sheer acting genius...none matches that last one of Vito's to Michael in the garden.

Apple

A wise and frugal government, which shall leave men free to regulate their own pursuits of industry and improvement, and shall not take from the mouth of labor the bread it has earned - this is the sum of good government.

- THOMAS JEFFERSON