I would not want a girl who has no real experience for a number of reasons, that I do not want to get into, but mainly she would have no skills, and two its a sign of a low libido, which is not going to make her compatable with me.
No number would really bother me. My quesion for her would never be how many partners she has had, but how many she had while in committed relationships with someone else. Even then, if she cheated a long time ago, and has changed that might not be an issue. My real concern is not how many people she had before me, but who she is with once she is with me. So what if she was a slut. If I love her and she loves me, it does not matter.