You know at the end of the day the only thing that is going to matter is your chemistry with the provider. Who is hotter is a very subjective question. I had a great time with Bin. Some reviews here complain about her face and age, I thought she was pretty. Koreanna looks like a Barbie Doll but, for that amount, I could choose a lot of other well reviewed girls like Gisella of Kovergirls, etc. You should just search Bin Tatsexy and Koreanna SeoulDesire and read as many past reviews as possible and see what seems like your type based on reviews.