Both apartments are in busy neighborhoods and may be rather noisy at night, especially if the apartment on St. Antoine is right on or next to the Place de la Bastille.

I'm not a fan of the neighborhood around the Centre Pompidou, especially the closer you get toward Les Halles, which does not have a great reputation for safety. On the other hand, an apartment on a passage would likely be fairly quiet.

On balance, I'd pick the apartment on St. Antoine. It's a busy street, but I prefer the neighborhood.

Bons voyages!

Evan in Paris