Quick search for a weekend in August (08/05 - 08/07):

Chatwall at 399 USD
W Times Square 245 USD
W Lexington 171 USD
W Union Square 341 USD

Andaz 5th 345 USD
Andaz Wall Street 275 USD


Afaik Andaz 5th and Chatwall are more or less in the same price league. W seems to be cheaper than Andaz. At least for these dates and as you know, figures can prove anything