Planning 3 or 4 night break in one of the above. We've sourced hotels in all places and all are of a similar price. DDs are 2 and 4 and are fairly easy going. Which do we decide. Lots to do in London, fair amount to do in Edinburgh, not sure about York, but the hotel is more child friendly in York (outdoor playground thingy) but all hotels have pools. Drawback for London is distance (Cumbria) and the tube with a pushchair. What are your thoughts.