The problem here...
...is that these things are completely subjective and personal. What one man finds attractive another man (or even many men) might not.
Having said that, my experience it that if I really do find a woman unattractive facially...both in regards to genetics (she was just born ugly), or perhaps she is just very plain and very average (meaning perhaps if she put some effort into it with makeup etc she wouldn't be that bad) I simply can't "go there", at least not without A LOT of help (booze and perhaps very heavy persuasion on her part...some women do get better looking the more you get to know them).
Once, early after my divorce I met a woman online, and after a few weeks of emails and phone calls we decided to meet. Great body...she was in the military, and she was in amazing shape...round, firm juicy butt...amazingly perky breast...narrow waist...firm and toned all over without being skinny. I could not have asked for a better body on a woman insofar as my own personal taste.
The thing is though...she was as plain looking as a woman could possibly be without being actually "ugly". Just totally NOT attractive, which is not quite the same as "UN" attractive. No makeup, no style, really cheap clothes. Plus, she was not sexy at all - not a sexy bone in her body. She was really interested in me, and I tried to make dinner as pleasant as possible, but really, I was looking to get out of there ASAP. I never spoke to her again, even though she called and emailed a few times. And I was pretty damn horny and desperate myself, having just recently gotten divorced.
By comparison, I work with this woman who is a big girl...really big. Not 400lbs big, but she might be 250. But she is really, really pretty. Gorgeous. Whenever I see her I find myself staring. I can't imagine what her body must look like naked...(shudder)...but the truth is I kinda do like a "healthy" woman (though not THAT healthy, let me go on record), so if you gave me enough booze and she gave me enough reason (charm, sexiness...)...well, let's just say I'd never admit it around my office, but on here...yeah, I'd probably do her. I'm telling you, she is really, really pretty. Carries herself in a very sexy yet lady-like manner as well.
Think of it this way....there ARE BBW escorts...but have you ever seen an escort who was paper bag ugly???