It's a tricky one because the further you are willing to travel, the bigger the pool of WGs that are available to you. Few years ago I wouldn't have dreamt of travelling out of London for a punt, but now I accept that I have to in order to meet the WG that I want. I've become quite picky over the years, which has meant that location is not as important to me anymore as looks and services.
There's nothing worse than the journey home after a shit punt though. The way I prevent this however, is to research the girl as much as possible or have a plan B.