If you're prepared to pay €150/€200 a night I certainly wouldn't think of the Pennsylvania or Milford Plaza ... they're definitely budget options and are fine for that - but for the money you want to pay you can do a lot better.
These are all nice places that I've stayed in and probably should be around your budget (but it's been a while since i've stayed there so I can't be sure!)
is your friend especially in North America (it can be a bit hit and miss in Europe I find) - you should get plenty of recommendations there.
We are staying in the Embassy Suites in New York in November, it is in the Financial district and I have heard nothing but good reports on it, the room rate includes a proper free breakfast and free drinks every evening. It has been given great reviews on .
Bid for your own hotel room. Only issue is that you dont know which hotel you're getting until you have paid. That shouldnt put anyone off though, you can narrow it right down to a certain area. www.betterbidding.com for info on how to use priceline and what people have paid in the past for 3/4/5 star hotels in various places.
By far and away the best way to find deals on hotels in any city around the world