Attractivness

One of the biases which often goes unnoticed is attractiveness, Pretty women and good looking men have a huge advantage in life pure and simple. 

Bastian Jaeger and colleagues were motivated by a puzzling gap in both research and public discourse: despite strong evidence that physically attractive individuals receive systematic advantages in domains like hiring, pay, and legal outcomes, “lookism” attracts far less moral outrage than race- or gender-based discrimination. The authors asked whether this apparent tolerance reflects genuine acceptance of attractiveness-based bias, or whether people simply fail to notice it in the first place.

Personally I have always thought this is obvious. As do many others from this discussion. It is the reason women, and some men, get plastic surgery. Men will even go to great lengths (slight pun) to increase their height.