I was hoping she would pick Adam, but Jason does seem to be a good match for her. I cannot fault her.
The one thing that always bugged me: why didn't Adam shave his face? It's true that a good shave wouldn't make him as attractive as the pretty boy, but that's no excuse to look like a slob. I suspect that the producers encouraged him to "dress down" to keep up the conflict between the "average" and the "pretty."