I found this article:
http://www.lse.co.uk/ShowStory.asp?s...s_own_sex_toys
"Whilst both sexes, women (70 per cent) and men (83 per cent), say that watching hardcore action turns them on, only one-in-five females believe they find them more stimulating than men, while 43 per cent of men believe they find them more stimulating than women."
The article makes for interesting reading. Seems the Brits are keen on their porn. Unfortunately I don't know who conducted the survey so it's hard to work out how objective or accurate the data is.