Cocktail bars tend to attract more women than men so the ratios can even up slightly. In Manchester I've found Font Bar to be a gold mine during the week, particularly Wednesday's and Thursday's when there also tends to be smarter student/professional types out rather than chavs.

I remember one night Nova and I were in Font bar and the ratio must have been literally 90% women to 10% lads. We were complete chodes back in those days and hadn't come across this community so we didn't act on the opportunity presented to us and instead admired from a distance with our beer shields up.