The Hyatt is actually fairly decent but my vote would be for the Chase Park Plaza on the corner of Lindell and Kingshighway (basically 5 minute cab ride to down town) in the heart of the Central west End, especially for an extended stay. Not sure if they are partners with any FF program though.
Here is their link
http://www.chaseparkplaza.com/hotel.htm
[This message has been edited by Mvic (edited 09-06-2000).]