the oldest establishment (guys and dolls - traditional)
When I was a freshman, we did Guys and Dolls, and as a guy, I got to be a crapshooter. One time there was a concert in the auditorium that night, so we had to rehearse in the cafeteria, so we pushed the piano down the hall and discovered that our pianist and music director can play while walking. It was tremendous.
My fovorites are probably:
"Mr. Cellophane" from Chicago (My audition this year)
"Heaven on their Minds" from Jesus Christ Superstar
"Galaxy Song" from The Meaning of Life (I think it counts)
"Mr. Mistoffelees" from CATS
There's others out there too, those are just some of my current favorites.