I can say London keeps on changing. I am originally from London and lived in South London for most of my life for that matter. However the last few years I have been either abroad or in a different city in the U.K working and studying. It's weird thinking of the city from a point of view of growing up there and then from a business perspective
In terms of business, I prefer going to the East, as its like the WildWest out there. Sure there are bigger risks, but you can really push for what you want. While at the same time enjoying an exotic place, with cheaper food, a lot nicer women and feeling of adventure.
With London you will get a badge of honour for living there. Everyone claims to be a "londoner" these days, and there is a reason for that. But the corporate lifestyle, 9 to 9 job, shit weather; and paying ridiculous amounts of money for a pint in some pub that used to be a crack house back in 2002, is as far as it will go.
Sure in theory, in London you can tap into all these different niches, go for black girls, polish girls, south american girls or whatever; while traveling away at weekends to EE and the Noridic countries. But the vast majority of people don't have the time or drive for that, once they get stuck into their work and living in the city.
However I do know of this one guy who I believed worked for a big firm in London and ended up spending his wages on traveling around at the weekend rather than getting drunk with his colleagues in the West end. Here is the videos he posted.
https://www.youtube.com/user/COOLifeDesign
London is a strange one for women, logistics make one night stands difficult, so you usually have to arrange meeting another day; but being London the rates of flaking are pretty high. There is a work culture and lifestyle that is unique to this city and that can get in the way of living a free life.
The woman I am seeing at the moment is from South America and I met her in London, so as said previously, you can find beautiful women from all over the world, but you probably will have to play the numbers game and go to these niche bars/areas.