I love 1776! I got it to watch on the fourth and forget where I put the movie. DOH! Love all the songs - BUT - Mama Look Sharp. Sad and a bit too close to home. I completely agree with your other suggestions! :D I don't know which I can say is my number one favorite - but, the songs I think of first when I think of 1776 is "The Lees of Old Virginia", "Yours, Yours, Yours" and "He Plays the Violin".

Have you seen this? -->> http://www.1776themusical.us/
It is a link to a website all about the musical! Although wikipedia has a bit more detail about the musical. :D