Moma is misinformed on other parts of the UK.
I would recommend going outside London to anyone who is looking for relationships and women.
Bristol, Reading, Leeds, Slough, Newcastle, Hertfordshire, Watford, Cardiff (Wales), Nottingham and Huddersfield to name a few.
They're all light-years behind in terms of the sophistication of London. These towns and unitary authorities are like NJ, as apose to London being NYC - You can still find hot women out there, but not as much as a hassle to pull in larger cities if you get my drift. You don't pay cover charge for the majority of the clubs out there, the booze or beer is much cheaper, as London's elite clubs and mst frequented venues, you're looking at £4.50-5.00 a beer - Thats about $6-8 USD. Outside of these London venues, drinks are from £2.50 which is about $3 USD.
Don't waste your money in London. You will be rejected by managers and doorstaff, if you havent come in with a bunch-of-women by 11PM. Most clubs open around 9PM and finish by 3AM. Some clubs go on till 4AM, latest. These are the clubs were the ''Hot 10's'' are (Penthouse, Funky Buddha, Faces etc).
Americans are NOT loved nor entirely liked here, I don't know where another poster said you will get browny-points for having an accent, but don't come here thinking you will. I recently saw a group of Abercrombie-esque-all-American lads get humiliated by some girls in West End's Bar Rumba and got CRUSHED, verbally crushed.
Aussie-men/women and SA's are more tolerated than US residents here. I have no clue why. Maybe because of similiar sports/culture.
If you're going to go to London, go to Lounge-Bars and Open-Bars which are FREE or £5 cover charge before a specified time. They're much much much more consistant in fun, pulling and booze and much easier on the wallet.
Unless you have boss-paper to travel via black-cab which starts at £10 and have an apartment/flat inside Central London's hotspots, goodluck pulling hotties back from any of those Central London clubs.