If you only have a weekend and are doing other stuff, I'd do this:
Bronson Canyon ditch, Griffith Park, Kenny Anderson ledges (friendship auditorium), Home depot curbs and Lockwood. Also the art school where tons of people skate now: Ramón C. Cortines School of Visual and Performing Arts. From that school you can easily head into DTLA via grand Ave and you'll come up on this flat ground spot on the left, you will recognize, that also has ledges and stairs. Mini jkwon is not far from the art school and across the street are these banks that have been in a bunch of stuff. Intersection of Sunset and Figueroa.
Silver lake, echo park, Los Feliz all have random things sprinkled around everywhere, but if time, driving, parking is an issue, I'd stick to the above list. Might be worthwhile to explore Wilshire too and skate jkwon aka Korea radio.