Thing is, how many can you reasonably expect to see in a weekend...... 2, 3, errrrr 4????? As long as your chosen place has a few you fancy then you're in business. London having say, 500 lovelies, is largely irrelevant if you're not actually gonna see 498 of them.
A good point. So if you are going to see two or three, what might be the considerations (apart from two or three decent quality WGs being available)?
1. Costs
2. Ease of finding them
3. Enjoyable area inbetween punts.
1a cost of girls: London more expensive
1b cost of getting there: depends where you are
1c other costs while there: again, London is damn pricey.
2. Finding them: you can get off the train at derby and the shag shop is right across from the station but going to derby is hardly recommended. A compact city with central prossies -- Edinburgh, without a doubt. Shortlists of top indies if you book in advance, walking distance from main station, 3 quality knock shops same.
2a London is a great city if you know it well, but getting around can be expensively time-consuming if you don't, and sometimes if you do.
3. Enjoyable between punts: London hands down if you have money to spend and are well-organised, otherwise it can be hard work not emptying the wallet. Edinburgh wins again. The whole of the city centre is walkable and it's a city renowned for its beauty and its bars and its nightlife.
Years ago I'd have said Manchester for streetwaling and Glasgow for kerbcrawling but sadly the country's glorious masterbators have put an end to such simple pleasures.