If there's an option, I like to take the elevator. If I have just one kid with me, then I'll just carry the kid + stroller up the stairs myself. Or I'll fold up the stroller and carry it on my back up the stairs...

I haven't taken a double stroller (or a wide single) stroller on the escalator... just because it would block the entire escalator. If I was in a hurry, then maybe I would consider it? My preference would be to fold up the double stroller and carry it on my back, and divvy up the kids between the parents' arms.

In any case, the NYC subway system doesn't really have many escalators so it's kind of a moot point. We just have stairs and if we're lucky, the occasional aromatic elevators.

Do you take strollers on the escalator?