The first guy appears to be suffering from masseter hypertrophy. These photos came from a study where people tried to figure out who had a better personality. They often agreed on whose jaw radiated a good or bad personality. A recent study aimed to define the aesthetic preferences for the male jawline by conducting an internet survey. Participants were presented with images of various male faces and asked to rate their attractiveness. The results revealed a surprising degree of consensus among participants, suggesting that certain jawline characteristics are indeed perceived as more aesthetically pleasing than others. The study identified several key features associated with an "ideal" male jawline: Gonial Angle: A well-defined angle where the jawbone turns upwards was favored, with an ideal measurement of around 130 degrees. Intergonial Width: Participants preferred a jawline that was neither too narrow nor too wide, with the ideal width being proportionate to the overall facial width. Vertical Position: The ideal vertical position of the jawline was found to be at the level of the oral commissure (corner of the mouth) or slightly higher. Jawline Slope: A gently sloping jawline in the frontal view, roughly parallel to a line extending from the side of the nose to the cheekbone, was deemed most attractive. Ramus Slope: The ascending ramus (the vertical part of the jawbone) was preferred to have a slope of 65-75 degrees to the Frankfort horizontal plane, a standardized anatomical reference. Curvature: A smooth, well-defined curvature of the jawline was favored over a pointed or angular appearance. These findings suggest that there might be an inherent, or at least widely shared, appreciation for certain facial features, particularly in the context of male attractiveness. https://www.researchgate.net/publication/291384320_The_ideal_male_jaw_angle_-_An_Internet_survey
