I thought this density comparison map by former Streetsblog S.F. writer Michael Rhodes, and article that accompanied was interesting. It maps out many of neighborhoods that dktsb listed above. One thing to take note of is there is a lot of large swaths of parkland in SF that sadly we don't have in these central parts of L.A. (save for Elysian Park)
From
http://la.streetsblog.org/2015/03/03...eally-compare/