Good choice the Hyatt blows the Marriott out of the Water.
The breakfasts there at the PH are outstanding too.And one gets a real sense of history while staying there.
The Marriott is not that far away by walking or taxi.
Have done both.
Enjoy !
------------------
AA & Starwood,Marriott Platinum
Hyatt, Hilton Diamond
Swissotel Club Gold
U/A 1k