We were in NYC for a week in September. We saw Book of Mormon, Wicked, and War Horse, for a true Broadway trifecta. A comedy-farce, a classic musical, and a serious drama. All three were great, but War Horse was absolutely the most awe-inspiring theater experience I've ever had. (And I do love me some theater.)
I'd see any of them again, but if you want true Broadway theater, War Horse wins my vote. Steven Spielberg has made a movie of it, which is coming out Christmas Day. The previews look great, but it's a very different experience than what you'll see on stage. Anyone visiting NYC in the near future should see this play, regardless of cost.
Dave