Hey Guy,
I will stick to centre areas: Near the Festival Theatre, Morningside and Ocean Terminal, Elm Row and some part of Leith.
I personally avoid all rough speaking Scottish uneducated girls as they are not safe if the work in council flat. Once I was ripped off £100 in a scum of a girl who went out with my money and few seconds leater her boyfriend appeared to scared me out. Again this was in a council area.
Google map with satellite view helps.
One girl I like in Edinburgh is Heather Pleasure, works fro her home and she is a real gfe, limited to what she offers if you are into porn staff, but if you want gfe she is really nice.