Which gym should I choose in manhattan?

I am trying to decided whether to join New York Sports Club or Crunch gym. Both memberships are the same cost through my work and both memberships provide access to all locations. Both gyms are located very close to my apartment and my job, and both gyms offer the same array of classes at equally convenient and inconvenient times for my schedule. Both gyms also offer saunas. Does anyone have any insight as to which gyms are better as a whole? If you can provide specific insight on the Upper West Side NYSC and Crunch locations, that would be great, but it is not necessary.

If I could make this decision without doing trials at both gyms, that would be great.