I put my parents in the Chicago PH for a weekend in 2010 with FFN awards. My 80+ y.o. dad, who usually stays at the Palmer House here and who used to come for business, said it was the nicest hotel experience they'd ever had in Chicago.

Much better than the Hyatt Regency. Have not seen the Blu yet. Ric Garrido's blog covered the PH and the Blu, so check his archives.