I stayed in both properties last week. My experience is documented at
http://www.flyertalk.com/forum/Forum...L/003479.html.
In addition to what I said there, some of the rooms at the St. Francis are very small. They don't have heavenly showers. The lobby and public areas at the St. Francis are stunning, but the rooms are a step down from the Westin I practically live at in D.C.