Old thread I know, but I stopped by the box office at around 6 to see if there was any chance they had rush seats left. Not only did they have them, but they were front row, dead center. I asked the guy if this was normal for student rush; he said no, I just lucked out. I was in seat 105, and the 4 seats next to me were empty.
But yeah, just wanted to give a heads-up that rush seems pretty easy to get, and you might get excellent, excellent seats.
(for the record, I really liked the show -- after the first 40 minute or so which were kind of boring, but what dazzling performances!)
"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