I have to vote for Jessica Difeo as well. She has that nice soft look to her that just makes you want to spend a weekend with her in a secluded nice log cabin next to a roaring fire while it's snowing outside and go at it over and over.
Heather is definitely nice too, but she is more of a one-night-stand "gonna feel damn good but couldn't see yourself sticking around for more two days later" kinda feel.