Moving on from George Street, I was on a wander at lunchtime, and West Bow / Victoria Street should really be pedestrianized. If the Council were to be worried out the through traffic it carries, open up Candlemaker Row again.
Victoria Street is a little gem of a street, nice shops, and the veranda up top, with bars and restaurants having seats out.
Walking up the street the pedestrians are bumping into each other all the way, looking from above those eating are subjected to constant traffic rattling up the setts, and examining from above there were cars parked either side, with still loads of space in the middle (at the very least enforce parking restrictions, allow them on one side only, and significantly narrow the road to widen the pavement on both sides).
Where else?