http://seattle.gii.net/~pfly/gnis.bear.jpg
Seems to be about an equal number of “Bear” placenames in the east and the west. The west won in this map, but if the line between east and west was drawn a bit more west, the east might win. (also it depends on what counts as a placename.. and I’ve edited out some of the GNIS data, like churches and schools, because they seem to have been differently collected for different states, and are in many cases wrong or out of date)

http://seattle.gii.net/~pfly/gnis.santa-san-los.jpg
More placenames start with San- than Santa-, or Los-. This map is of the whole US, but San- wins out in just California too.

http://seattle.gii.net/~pfly/gnis.devil.jpg
As for Devil, there are so many.. though this map isn’t restricted to National Parks. What made me laugh in checking Devil placenames out is that there seems to be a whole Devil’s body (backbone, teeth, thumb, toenail, eyebrow, etc), Devil’s household (tea table, saltcellar, ice box, bathtub, etc), and a bunch of other strange ones (Devil’s potato patch, tater patch, turnip patch, golf course, ball diamond, cotton patch, parade ground, racecourse, etc).

There are a bunch of other maps at http://seattle.gii.net/~pfly/
in rough unorganized form.. some good some not so good. The GNIS map files start with “gnis.”

Thanks for the post! This placename mapping stuff is fun and sometimes weird..