Any time you are in the midst of a city, and not in a high rise, you are probably only going to view of neighboring buildings. The Palace is not tall enough to offer a panoramic view in any direction.
However, I once got a view that is, for that property, the most wide-reaching. We were upgraded to a spectacular corner suite which had a curved window (yes, the glass was actually curved) looking up Geary St. While it was nothing more than a view down a congested city street and a bunch of moderately-maintained inner-city buildings, it was a very nice room.
If you want a long-distance view, pick the W, St Regis, or tower at the St Francis.