I've read a lot of posts from the girls here on lit. I don't recall any of them expressing their disire for a guy with a 10 incher. I'm sure there are some girls who do like 10" cocks, but I'll go out on a limb and say most do not.
I think there are about 12 billion threads on this topic scattered about lit. Do a search and you should be able to find answers to all your questions.