Well in terms of songs I want to get up and dance to(when I'm listening in my house, not in the theatre...) the three I love to do that with is:
You Can't Stop The Beat(Hairspray)
La Vie Boheme(Rent)
Hey Big Spender(Sweet Charity)-kinda made my own hooker dance..hehe
The numbers as seeing them performed in the show
From West Side Story:
Prologue(one of the most amazing 10 min in theatre--you're given all the background info you need without a word being spoken)
Dance at the Gym: Everything is perfectly conveyed here--the tension between the sharks and jets in Mambo, Cha-Cha and meeting scene convey the beauty and romance of Tony and Maria's love at first sight
America: I agree I do like the movie better but this conveys the whole feelings of newcomers to the country, and the music and dancing is just amazing, when done really well, it looks AMAZING
Cool: Again, perfectly conveying the nervousness and tension w/ the combination of the great Bernstein and Robbins-again, when done well, amazing dancing can be viewed
The Rumble: In what other "dance number" is one of the most important aspects of plot are made? The idea of a whole fight being "danced", being choreographed to blend perfectly with the music? Again, this number ends up looking/sounding genius.
Not biased towards a certian show, i swear...
"If there was a Mount Rushmore for Broadway scores, "West Side Story" would be front and center. It snaps, it crackles it pops! It surges with a roar, its energy and sheer life undiminished by the years" - NYPost reviewer Elisabeth Vincentelli