Pippin was very good. The production and cast are all top notch. I am very glad I saw it, but I feel like without the cast and Diane Paulus's direction and execution it would have been a snooze fest. I am not a big Stephen Schwartz fan, and I feel like Pippin is a bit disjointed when it comes to the structure of the show.
I've only seen the Chicago production of Big Fish. I loved it, but Pippin is far more imaginative and breathtaking. Both are worth seeing. It just comes down to wanting to see a hot ticket talk of the town revival, or a big new musical in previews (which seeing something so early on can actually be exciting).
"There’s nothing quite like the power and the passion of Broadway music. "