Here's an updated version with some markers for scale (each dot is 1ft). I've moved my file to Illustrator and put stuff on a proper grid that means I can adjust things really easily now. I'd just knocked together the first one in Photoshop. I know this is all a bit pointless and nerdy but I enjoy trying to figure this stuff out.
A couple of things I've used as starting points:
For Hollywood High, I used a standard US stair size (11'' x 7'') for each of the 16 steps. This gives a length of near 14', which is fairly close to the length that Google Maps' measurement tool gives me.
Someone pointed out the double-set at UC Davis. There's 18 stairs there - used that to get the new height which does indeed make it taller than Hollywood High.
Love and Wallenberg are much harder. There are a few photos of boards next to the Love steps that let me estimate a height. Each 'step' looks to be around 5' wide. Wallenberg height is the most unknown of these many unknowns so it's probably really wrong. Happy to adjust as the discussion continues.