Thanks for all the advice.

Forgot to mention, price is the same at all (Hilton +15), and hotwire offers no real discounts though a real possibility of ending up at the Swiss, Allegro or Millenium.

Normally I would priceline but with the family in tow it's not worth the savings to lose some bargaining power in the even I get a room with issues. The Hyatt is tempting, but I think I'd rather sacrifice a little coin to be walking dist from Michigan Ave, Rush St, etc.