I think OP has more than 33K points, but was just asking whether it was possible to book suites for 33K points.
With 33K points, you can book a suite at any hyatt worldwide for one night (as long as they have availability).
For the top hyatts in NYC, there are 3 cat 6s - GH @ grand central, andaz by bryant park and andaz wall st.
I'd definitely go for either the andaz in midtown or GH for location's sake. There's nothing really to do that far downtown in manhattan (apart from see wall st, ground zero, statue of liberty).
Between GH and Andaz, I never stayed at suites in either, but I do recall GH being much "grander" and old style. Rooms are also larger. I liked Andaz's dining options and sleek look, but it probably suits business purposes better.