I would say that I dont pass do to my chin (manly) my adams apple (not huge but is there for sure) lack of hips and butt. The fact that I am 6 2" with a weight hovering around 200 I would like to lose about 20 more lbs bringing me to 180. I am a size 12/14 when I am dressing and I think I blend pretty good. I recently got to test that theory and I have to say I loved it, I am pretty sure that the guy hosts at the restaurant noticed but Whatever, The waitress we had was very nice to me. So I will give myself a 5 on passability. Either I do or I don't but does it really matter as long as we are happy. Blendability I would rate myself a 7.5
But as Shenanigans stated women come in all different sizes, shapes, weights, facial structure. We are all unique and we should all just be ourselves. I think we all tend to think passability has to be on the lines of say Megan Fox, Heather Locklear, Helen Hunt, But then again we have Rosie Odonell, Roseanne, and any other woman out there that might have a bit more masculine aspects. But in all this my confidence is rising about being around others. Oh yeah my voice in person I guess is also very good so I will give that an 8. that gives me an average of 6.8